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Showing 19 to 21 of 21 products
Data Loggers
HOBO MX Water Level Data Logger MX20L-04
SKU: E348-MX20L-04
Important Info Overview Bluetooth data offloadA low-cost, research-grade data logger with Bluetooth data offload to continuously monitor water level and temperature. Measures at depths of...
Important Info Overview Bluetooth data offloadA low-cost, research-grade data logger with Bluetooth data offload to...
Available Item
$628.00
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{"id":10716054454431,"title":"HOBO MX Water Level Data Logger MX20L-04","handle":"hobo-mx801-water-data-logger-copy","description":"\u003ch5\u003eImportant Info\u003c\/h5\u003e\n\u003ch3\u003eOverview\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003e\u003cstrong\u003eBluetooth data offload\u003c\/strong\u003e\u003cbr\u003eA low-cost, research-grade data logger with Bluetooth data offload to continuously monitor water level and temperature. Measures at depths of up to 13, 30, or 100 feet in a wide range of underwater environments, both freshwater and saltwater.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThe MX20L Water Level Logger brings you all the same great features as the U20L and more!\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eIntegrating Bluetooth for fast and reliable data download, the MX20L logger eliminates the need to plug your logger into a base station or shuttle to offload data in the field, ensuring continuous water level and temperature monitoring. With options to measure at depth ranges of 13, 30, or 100 feet in a wide range of underwater environments, this rugged logger features 0.1% measurement accuracy, a durable polypropylene housing for use in both freshwater and saltwater, and a non-vented design for convenient and reliable deployment.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThe MX20L comes with a magnetic activation fob that can \"wake up\" the logger to activate its Bluetooth communication for configuration and data download. The included fob comes with a lanyard to prevent losing or dropping the fob in the field. \u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThis logger records absolute pressure, which is later converted to water level readings by our HOBOconnect software. To compensate for barometric pressure changes, you can use another HOBO MX20L Water Level logger as a barometric reference. \u003c\/span\u003e\u003c\/p\u003e\n\u003cdiv\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003ch3\u003eHighlighted Features\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eSelf-contained, non-vented design enables easy deployment\u003c\/li\u003e\n\u003cli\u003eIdeal for use in both freshwater and saltwater environments, including wells, streams, lakes, wetlands, and tidal areas\u003c\/li\u003e\n\u003cli\u003eDepth measurement options of up to 13, 30, or 100 feet depending on model\u003c\/li\u003e\n\u003cli\u003eDurable ceramic pressure sensor withstands freezing\u003c\/li\u003e\n\u003cli\u003eStreamlined data offload via Bluetooth to the free HOBOconnect app\u003c\/li\u003e\n\u003cli\u003eHOBOconnect app provides easy extraction and visulization of water level data\u003c\/li\u003e\n\u003cli\u003eExtended battery life up to 10 years (power-saving mode requires magnetic fob to activate Bluetooth for data download)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cbr\u003e\u003c\/h3\u003e\n\u003ch5\u003eSpecifications\u003c\/h5\u003e\u003ctable\u003e\n\t\u003ctable border=\"1\"\u003e\n\t\t\u003ctr\u003e\u003ctd colspan=\"2\"\u003e\n\u003cstrong\u003ePressure (Absolute) and Water Level Measurements MX20L-01\u003c\/strong\u003e\n\u003c\/td\u003e\u003c\/tr\u003e\n\t\u003ctr\u003e\n\u003ctd\u003eOperation Range\n\u003c\/td\u003e\n\u003ctd\u003e 0 to 207 kPa (0 to 30 psia); approximately 0 to 9 m (0 to 30 ft) of water depth at sea level, or 0 to 12 m (0 to 40 ft) of water at 3,000 m (10,000 ft) of altitude\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFactory Calibrated Range\n\u003c\/td\u003e\n\u003ctd\u003e 69 to 207 kPa, 0° to 40°C (10 to 30 psia, 32° to 104°F)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBurst Pressure\n\u003c\/td\u003e\n\u003ctd\u003e\n310 kPa or 18 m depth (45 psia or 60 ft depth)\u003c\/td\u003e\n\u003c\/tr\u003e\n\t\u003ctr\u003e\n\u003ctd\u003eWater Level Accuracy*\n\u003c\/td\u003e\n\u003ctd\u003eTypical error: ±0.1% FS, 1.0 cm (0.03 ft) Water \nMaximum error: ±0.2% FS, 2.0 cm (0.06 ft) Water\u003c\/td\u003e\n\u003c\/tr\u003e\n\t\n\t\u003ctr\u003e\n\u003ctd\u003eRaw Pressure Accuracy**\n\u003c\/td\u003e\n\u003ctd\u003e ±0.3% FS, 0.62 kPa (0.09 psi) Maximum error\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\t\u003ctr\u003e\n\u003ctd\u003eResolution\u003c\/td\u003e\n\u003ctd\u003e \n\u0026lt;0.02 kPa Water (0.007 ft Water)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePressure Response Time (90%)***\n\u003c\/td\u003e\n\u003ctd\u003e\u0026lt;1 second at a stable temperature; measurement accuracy also depends on temperature response time\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\u003c\/table\u003e\n\n\u003cbr\u003e\u003cbr\u003e\n\n\u003ctable\u003e\n\t\u003ctable border=\"1\"\u003e\n\t\t\u003ctr\u003e\u003ctd colspan=\"2\"\u003e\n\u003cstrong\u003ePressure (Absolute) and Water Level Measurements MX20L-02\n\u003c\/strong\u003e\n\u003c\/td\u003e\u003c\/tr\u003e\n\t\u003ctr\u003e\n\u003ctd\u003eOperation Range\n\u003c\/td\u003e\n\u003ctd\u003e 0 to 400 kPa (0 to 58 psia); approximately 0 to 30.6 m (0 to 100 ft) of water depth at sea level, or 0 to 33.6 m (0 to 111 ft) of water at 3,000 m (10,000 ft) of altitude\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFactory Calibrated Range\n\u003c\/td\u003e\n\u003ctd\u003e 69 to 400 kPa (10 to 58 psia), 0° to 40°C (32° to 104°F)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBurst Pressure\n\u003c\/td\u003e\n\u003ctd\u003e\n500 kPa (72.5 psia) or 40.8 m (134 ft) Depth\u003c\/td\u003e\n\u003c\/tr\u003e\n\t\u003ctr\u003e\n\u003ctd\u003eWater Level Accuracy*\n\u003c\/td\u003e\n\u003ctd\u003eTypical error: ±0.1% FS, 3.0 cm (0.1 ft) Water\u003cbr\u003e\nMaximum error: ±0.2% FS, 6.0 cm (0.2 ft) Water\u003c\/td\u003e\n\u003c\/tr\u003e\n\t\n\t\u003ctr\u003e\n\u003ctd\u003eRaw Pressure Accuracy**\n\u003c\/td\u003e\n\u003ctd\u003e±0.3% FS, 1.20 kPa (0.17 psi) Maximum error\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\t\u003ctr\u003e\n\u003ctd\u003eResolution\u003c\/td\u003e\n\u003ctd\u003e \n\n\u0026lt;0.04 kPa (0.006 psi), 0.41 cm (0.013 ft) Water\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePressure Response Time (90%)***\n\u003c\/td\u003e\n\u003ctd\u003e\u0026lt;1 second at a stable temperature; measurement accuracy also depends on temperature response time\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\u003c\/table\u003e\n\u003cbr\u003e\u003cbr\u003e\n\u003ctable\u003e\n\t\u003ctable border=\"1\"\u003e\n\t\t\u003ctr\u003e\u003ctd colspan=\"2\"\u003e\n\u003cstrong\u003ePressure (Absolute) and Water Level Measurements MX20L-04\n\n\u003c\/strong\u003e\n\u003c\/td\u003e\u003c\/tr\u003e\n\t\u003ctr\u003e\n\u003ctd\u003eOperation Range\n\u003c\/td\u003e\n\u003ctd\u003e \n0 to 145 kPa (0 to 21 psia); approximately 0 to 4 m (0 to 13 ft) of water depth at sea level, or 0 to 7 m (0 to 23 ft) of water at 3,000 m (10,000 ft) of altitude\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFactory Calibrated Range\n\u003c\/td\u003e\n\u003ctd\u003e \n69 to 145 kPa (10 to 21 psia), 0° to 40°C (32° to 104°F)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBurst Pressure\n\u003c\/td\u003e\n\u003ctd\u003e\n310 kPa (45 psia) or 18 m (60 ft) Depth\u003c\/td\u003e\n\u003c\/tr\u003e\n\t\u003ctr\u003e\n\u003ctd\u003eWater Level Accuracy*\n\t\t\u003c\/td\u003e\n\u003ctd\u003eTypical error: ±0.1% FS, 0.4 cm (0.013 ft) Water \nMaximum error: ±0.2% FS, 0.8 cm (0.026 ft) Water\u003c\/td\u003e\n\u003c\/tr\u003e\n\t\n\t\u003ctr\u003e\n\u003ctd\u003eRaw Pressure Accuracy**\n\u003c\/td\u003e\n\u003ctd\u003e0.3% FS, 0.43 kPa (0.063 psi) Maximum error\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\t\u003ctr\u003e\n\u003ctd\u003eResolution\u003c\/td\u003e\n\u003ctd\u003e \n\n\u0026lt;0.014 kPa (0.002 psi), 0.14 cm (0.005 ft) Water\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePressure Response Time (90%)***\n\u003c\/td\u003e\n\u003ctd\u003e\u0026lt;1 second at a stable temperature; measurement accuracy also depends on temperature response time\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\u003c\/table\u003e\n\u003cbr\u003e\u003cbr\u003e\n\n\u003ctable\u003e\n\t\u003ctable border=\"1\"\u003e\n\t\t\u003ctr\u003e\u003ctd colspan=\"2\"\u003e\n\u003cstrong\u003eLogger\n\n\n\u003c\/strong\u003e\n\u003c\/td\u003e\u003c\/tr\u003e\n\t\u003ctr\u003e\n\u003ctd\u003eWireless Standard\n\u003c\/td\u003e\n\u003ctd\u003e \nBluetooth 5 LE\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTransmission Range\n\n\u003c\/td\u003e\n\u003ctd\u003e \nApproximately 30.5 m (100 ft) line-of-sight\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRadio Power\n\n\u003c\/td\u003e\n\u003ctd\u003e1mW (0 dBm)\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\t\u003ctr\u003e\n\u003ctd\u003eReal-time Clock\n\n\t\t\u003c\/td\u003e\n\u003ctd\u003e±1 minute per month 0° to 50°C (32° to 122°F)\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\t\n\t\u003ctr\u003e\n\u003ctd\u003eBattery\n\n\u003c\/td\u003e\n\u003ctd\u003e\n2\/3 AA, 3.6 Volt lithium, factory-replaceable\n\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\t\t\n\u003ctr\u003e\n\u003ctd\u003eBattery Life (Typical Use)\n\u003c\/td\u003e\n\u003ctd\u003e\n3 years with 1-minute logging and Bluetooth always on\u003cbr\u003e\n7 years with 1-minute logging and Bluetooth off and LED off\u003cbr\u003e\n10 years with 5-minute logging and Bluetooth off and LED off\u003c\/td\u003e\n\u003c\/tr\u003e\t\t\n\t\t\u003ctr\u003e\n\u003ctd\u003eBattery Indication\n\u003c\/td\u003e\n\u003ctd\u003eBattery status shown in HOBOconnect app (approximate)\n\u003c\/td\u003e\n\u003c\/tr\u003e\t\t\n\t\t\u003ctr\u003e\n\u003ctd\u003eMemory (Non-volatile)\n\u003c\/td\u003e\n\u003ctd\u003eApproximately 400,000 sets of pressure and temperature measurements\n\u003c\/td\u003e\n\u003c\/tr\u003e\t\t\n\t\t\u003ctr\u003e\n\u003ctd\u003eData Download Time (with Bluetooth 5+ devices)\n\u003c\/td\u003e\n\u003ctd\u003eApproximately 3.5 minutes; 100,000 measurements \u0026lt; 1 minute\n\u003c\/td\u003e\n\u003c\/tr\u003e\t\t\n\t\t\u003ctr\u003e\n\u003ctd\u003eWeight\u003c\/td\u003e\n\u003ctd\u003e\nApproximately 154 g (5.43 oz) in air\n \nApproximately 53.9 g (1.9 oz) in fresh water\u003c\/td\u003e\n\u003c\/tr\u003e\t\t\n\t\t\u003ctr\u003e\n\u003ctd\u003eDimensions\u003c\/td\u003e\n\u003ctd\u003e3.18 cm (1.25 inches) diameter, 15.24 cm (6.0 inches) length; mounting hole 6.3 mm (0.25 inches) diameter\n\u003c\/td\u003e\n\u003c\/tr\u003e\t\t\n\t\t\u003ctr\u003e\n\u003ctd\u003eWetted Materials\n\u003c\/td\u003e\n\u003ctd\u003ePolypropylene housing and lanyard; Viton and Buna-N O-rings; ceramic sensor in acetal end cap; stainless steel screws suitable for saltwater\n\u003c\/td\u003e\n\u003c\/tr\u003e\t\t\n\t\t\u003ctr\u003e\n\u003ctd\u003eLogging Modes\n\u003c\/td\u003e\n\u003ctd\u003eFixed-interval (normal or statistics), burst or multiple intervals with up to 8 user-defined intervals and durations; logging intervals from 1 second to 18 hours. Refer to the HOBOconnect User’s Guide for details.\n\u003c\/td\u003e\n\u003c\/tr\u003e\t\t\n\t\t\u003ctr\u003e\n\u003ctd\u003eStart Modes\n\u003c\/td\u003e\n\u003ctd\u003eImmediate, next interval, date \u0026amp; time, button start (fob or app)\n\u003c\/td\u003e\n\u003c\/tr\u003e\t\t\n\t\t\u003ctr\u003e\n\u003ctd\u003eStop Modes\n\u003c\/td\u003e\n\u003ctd\u003eMemory full, never stop (overwrite oldest data), date \u0026amp; time, or after set logging period\n\u003c\/td\u003e\n\u003c\/tr\u003e\t\t\n\t\t\u003ctr\u003e\n\u003ctd\u003ePause\u003c\/td\u003e\n\u003ctd\u003ePause and restart with HOBOconnect app\n\u003c\/td\u003e\n\u003c\/tr\u003e\t\t\n\t\t\u003ctr\u003e\n\u003ctd\u003eAlarms\u003c\/td\u003e\n\u003ctd\u003eLog high- or low-alarm events; alarm status shown in HOBOconnect app\n\u003c\/td\u003e\n\u003c\/tr\u003e\t\t\n\t\t\u003ctr\u003e\n\u003ctd\u003eEnvironmental Rating\n\u003c\/td\u003e\n\u003ctd\u003eIP68\n\u003c\/td\u003e\n\u003c\/tr\u003e\t\t\n\t\t\u003ctr\u003e\u003ctd colspan=\"2\"\u003e \n* Water Level Accuracy: With accurate reference water level measurement, known water density, accurate barometric compensation data, and a stable temperature environment.\u003cbr\u003e\n\n** Raw Pressure Accuracy: Absolute pressure sensor accuracy includes all sensor drift, temperature, and hysteresis-induced errors.\u003cbr\u003e\n\n*** Changes in Temperature: Allow 20 minutes in water to achieve full temperature compensation of the pressure sensor. Maximum error due to rapid thermal changes is approximately 0.5%.\u003c\/td\u003e\u003c\/tr\u003e\t\t\n\t\n\u003c\/table\u003e\n\u003c\/table\u003e\n\n\u003cbr\u003e\u003cbr\u003e\n\n\u003ctable\u003e\n\t\u003ctable border=\"1\"\u003e\n\t\t\u003ctr\u003e\u003ctd colspan=\"2\"\u003e\n\u003cstrong\u003eTemperature Measurements (All Models)\n\n\n\u003c\/strong\u003e\n\u003c\/td\u003e\u003c\/tr\u003e\n\t\u003ctr\u003e\n\u003ctd\u003eOperation Range\n\u003c\/td\u003e\n\u003ctd\u003e \n-20° to 50°C (-4° to 122°F)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAccuracy\n\u003c\/td\u003e\n\u003ctd\u003e \n±0.2°C from 0° to 50°C (±0.36°F from 32° to 122°F)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eResolution\n\u003c\/td\u003e\n\u003ctd\u003e0.10°C at 25°C (0.18°F at 77°F)\u003c\/td\u003e\n\u003c\/tr\u003e\n\t\u003ctr\u003e\n\u003ctd\u003eResponse Time (90%)\n\t\t\u003c\/td\u003e\n\u003ctd\u003e10 minutes in water (typical) \nMaximum error: ±0.2% FS, 0.8 cm (0.026 ft) Water\u003c\/td\u003e\n\u003c\/tr\u003e\n\t\n\t\u003ctr\u003e\n\u003ctd\u003eStability (Drift)\n\n\u003c\/td\u003e\n\u003ctd\u003e\n0.1°C per year (0.18°F per year)\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\t\n\u003c\/table\u003e\n\u003c\/table\u003e","published_at":"2025-04-09T12:22:13","created_at":"2025-04-09T11:31:19","vendor":"Onset","type":"Data Loggers","tags":["Absolute Pressure","Barometric Pressure","Differential Pressure","Temperature","Water Level","Water Quality","Water Temperature"],"price":62800,"price_min":62800,"price_max":62800,"price_varies":false,"compare_at_price":null,"compare_at_price_min":0,"compare_at_price_max":0,"compare_at_price_varies":true,"all_variant_ids":[62060228673695,62117492228255],"variants":[{"id":62060228673695,"product_id":10716054454431,"product_handle":"hobo-mx801-water-data-logger-copy","title":"Default title","option1":"1+","option2":null,"option3":null,"sku":"E348-MX20L-04","requires_shipping":true,"taxable":true,"featured_image":null,"image_id":null,"available":true,"name":"HOBO MX Water Level Data Logger MX20L-04 - 1+","options":["1+"],"price":62800,"weight":0,"compare_at_price":null,"inventory_quantity":-1,"inventory_management":null,"inventory_policy":"deny","inventory_in_cart":0,"inventory_remaining":-1,"incoming":false,"next_incoming_date":null,"taxable":true,"barcode":"","qb_lookup":{"levels": {"1": {"id":62060228673695,"price":62800},"10": {"id":62117492228255,"price":59660}},"qb_price_varies":true,"grid":"\u003ctable class='shappify_qb_grid'\u003e \u003cthead\u003e \u003ctr\u003e \u003cth\u003eQty\u003c\/th\u003e \u003cth\u003ePrice\u003c\/th\u003e \u003c\/tr\u003e \u003c\/thead\u003e \u003ctbody\u003e \u003ctr\u003e \u003ctd\u003eBuy 1\u003c\/td\u003e \u003ctd\u003e$628.00 ea\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \u003ctd\u003eBuy 10\u003c\/td\u003e \u003ctd\u003e$596.60 ea\u003c\/td\u003e \u003c\/tr\u003e \u003c\/tbody\u003e \u003c\/table\u003e\u003cstyle\u003etable.shappify_qb_grid{ width:100%;} table.shappify_qb_grid offers thead, table.shappify_qb_grid thead tr, table.shappify_qb_grid thead th, table.shappify_qb_grid thead td{background:#D6D6D6;color:#000000;font-weight:bold;} table.shappify_qb_grid tbody tr:nth-child(odd) {background-color:#FFFFFF;} table.shappify_qb_grid tbody tr:nth-child(even) {background-color:#EFEFEF;} table.shappify_qb_grid tbody {color:#000000;} table.shappify_qb_grid, table.shappify_qb_grid th, table.shappify_qb_grid td { text-align:left;padding:5px;border: 1px solid #CCCCCC;border-collapse: collapse;} table.shappify_qb_grid {margin: 0px;}\u003c\/style\u003e"}}],"available":true,"images":["\/\/shoponset.hoskin.ca\/cdn\/shop\/files\/HOBO-Water-Level-Logger-MX20L-01_8a62ef2e-f67b-459c-af91-7fea2f6640bd.png?v=1744223501","\/\/shoponset.hoskin.ca\/cdn\/shop\/files\/HOBOMX20LWaterLevelLogger_e570b37a-1423-4629-b100-358f5c96e60b.jpg?v=1744223501","\/\/shoponset.hoskin.ca\/cdn\/shop\/files\/HOBO-MX20L-wide_7043ce5e-4c4b-4b74-ae91-a290fe3706ed.jpg?v=1744223501","\/\/shoponset.hoskin.ca\/cdn\/shop\/files\/HOBO-MX20L-field_5f63c81b-cd3e-4f00-828f-d4907e09a892.jpg?v=1744223501"],"featured_image":"\/\/shoponset.hoskin.ca\/cdn\/shop\/files\/HOBO-Water-Level-Logger-MX20L-01_8a62ef2e-f67b-459c-af91-7fea2f6640bd.png?v=1744223501","options":["Title"],"url":"\/products\/hobo-mx801-water-data-logger-copy","hasQB":true}
Data Loggers
HOBO MX Water Level Data Logger MMX20L-01
SKU: E348-MX20L-01
Important Info Overview Bluetooth data offloadA low-cost, research-grade data logger with Bluetooth data offload to continuously monitor water level and temperature. Measures at depths of...
Important Info Overview Bluetooth data offloadA low-cost, research-grade data logger with Bluetooth data offload to...
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$628.00
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{"id":10716062154911,"title":"HOBO MX Water Level Data Logger MMX20L-01","handle":"hobo-mx-water-level-data-logger-mx20l-04-copy","description":"\u003ch5\u003eImportant Info\u003c\/h5\u003e\n\u003ch3\u003eOverview\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003e\u003cstrong\u003eBluetooth data offload\u003c\/strong\u003e\u003cbr\u003eA low-cost, research-grade data logger with Bluetooth data offload to continuously monitor water level and temperature. Measures at depths of up to 13, 30, or 100 feet in a wide range of underwater environments, both freshwater and saltwater.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThe MX20L Water Level Logger brings you all the same great features as the U20L and more!\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eIntegrating Bluetooth for fast and reliable data download, the MX20L logger eliminates the need to plug your logger into a base station or shuttle to offload data in the field, ensuring continuous water level and temperature monitoring. With options to measure at depth ranges of 13, 30, or 100 feet in a wide range of underwater environments, this rugged logger features 0.1% measurement accuracy, a durable polypropylene housing for use in both freshwater and saltwater, and a non-vented design for convenient and reliable deployment.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThe MX20L comes with a magnetic activation fob that can \"wake up\" the logger to activate its Bluetooth communication for configuration and data download. The included fob comes with a lanyard to prevent losing or dropping the fob in the field. \u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThis logger records absolute pressure, which is later converted to water level readings by our HOBOconnect software. To compensate for barometric pressure changes, you can use another HOBO MX20L Water Level logger as a barometric reference. \u003c\/span\u003e\u003c\/p\u003e\n\u003cdiv\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003ch3\u003eHighlighted Features\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eSelf-contained, non-vented design enables easy deployment\u003c\/li\u003e\n\u003cli\u003eIdeal for use in both freshwater and saltwater environments, including wells, streams, lakes, wetlands, and tidal areas\u003c\/li\u003e\n\u003cli\u003eDepth measurement options of up to 13, 30, or 100 feet depending on model\u003c\/li\u003e\n\u003cli\u003eDurable ceramic pressure sensor withstands freezing\u003c\/li\u003e\n\u003cli\u003eStreamlined data offload via Bluetooth to the free HOBOconnect app\u003c\/li\u003e\n\u003cli\u003eHOBOconnect app provides easy extraction and visulization of water level data\u003c\/li\u003e\n\u003cli\u003eExtended battery life up to 10 years (power-saving mode requires magnetic fob to activate Bluetooth for data download)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cbr\u003e\u003c\/h3\u003e\n\u003ch5\u003eSpecifications\u003c\/h5\u003e\u003ctable\u003e\n\t\u003ctable border=\"1\"\u003e\n\t\t\u003ctr\u003e\u003ctd colspan=\"2\"\u003e\n\u003cstrong\u003ePressure (Absolute) and Water Level Measurements MX20L-01\u003c\/strong\u003e\n\u003c\/td\u003e\u003c\/tr\u003e\n\t\u003ctr\u003e\n\u003ctd\u003eOperation Range\n\u003c\/td\u003e\n\u003ctd\u003e 0 to 207 kPa (0 to 30 psia); approximately 0 to 9 m (0 to 30 ft) of water depth at sea level, or 0 to 12 m (0 to 40 ft) of water at 3,000 m (10,000 ft) of altitude\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFactory Calibrated Range\n\u003c\/td\u003e\n\u003ctd\u003e 69 to 207 kPa, 0° to 40°C (10 to 30 psia, 32° to 104°F)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBurst Pressure\n\u003c\/td\u003e\n\u003ctd\u003e\n310 kPa or 18 m depth (45 psia or 60 ft depth)\u003c\/td\u003e\n\u003c\/tr\u003e\n\t\u003ctr\u003e\n\u003ctd\u003eWater Level Accuracy*\n\u003c\/td\u003e\n\u003ctd\u003eTypical error: ±0.1% FS, 1.0 cm (0.03 ft) Water \nMaximum error: ±0.2% FS, 2.0 cm (0.06 ft) Water\u003c\/td\u003e\n\u003c\/tr\u003e\n\t\n\t\u003ctr\u003e\n\u003ctd\u003eRaw Pressure Accuracy**\n\u003c\/td\u003e\n\u003ctd\u003e ±0.3% FS, 0.62 kPa (0.09 psi) Maximum error\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\t\u003ctr\u003e\n\u003ctd\u003eResolution\u003c\/td\u003e\n\u003ctd\u003e \n\u0026lt;0.02 kPa Water (0.007 ft Water)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePressure Response Time (90%)***\n\u003c\/td\u003e\n\u003ctd\u003e\u0026lt;1 second at a stable temperature; measurement accuracy also depends on temperature response time\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\u003c\/table\u003e\n\n\u003cbr\u003e\u003cbr\u003e\n\n\u003ctable\u003e\n\t\u003ctable border=\"1\"\u003e\n\t\t\u003ctr\u003e\u003ctd colspan=\"2\"\u003e\n\u003cstrong\u003ePressure (Absolute) and Water Level Measurements MX20L-02\n\u003c\/strong\u003e\n\u003c\/td\u003e\u003c\/tr\u003e\n\t\u003ctr\u003e\n\u003ctd\u003eOperation Range\n\u003c\/td\u003e\n\u003ctd\u003e 0 to 400 kPa (0 to 58 psia); approximately 0 to 30.6 m (0 to 100 ft) of water depth at sea level, or 0 to 33.6 m (0 to 111 ft) of water at 3,000 m (10,000 ft) of altitude\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFactory Calibrated Range\n\u003c\/td\u003e\n\u003ctd\u003e 69 to 400 kPa (10 to 58 psia), 0° to 40°C (32° to 104°F)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBurst Pressure\n\u003c\/td\u003e\n\u003ctd\u003e\n500 kPa (72.5 psia) or 40.8 m (134 ft) Depth\u003c\/td\u003e\n\u003c\/tr\u003e\n\t\u003ctr\u003e\n\u003ctd\u003eWater Level Accuracy*\n\u003c\/td\u003e\n\u003ctd\u003eTypical error: ±0.1% FS, 3.0 cm (0.1 ft) Water\u003cbr\u003e\nMaximum error: ±0.2% FS, 6.0 cm (0.2 ft) Water\u003c\/td\u003e\n\u003c\/tr\u003e\n\t\n\t\u003ctr\u003e\n\u003ctd\u003eRaw Pressure Accuracy**\n\u003c\/td\u003e\n\u003ctd\u003e±0.3% FS, 1.20 kPa (0.17 psi) Maximum error\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\t\u003ctr\u003e\n\u003ctd\u003eResolution\u003c\/td\u003e\n\u003ctd\u003e \n\n\u0026lt;0.04 kPa (0.006 psi), 0.41 cm (0.013 ft) Water\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePressure Response Time (90%)***\n\u003c\/td\u003e\n\u003ctd\u003e\u0026lt;1 second at a stable temperature; measurement accuracy also depends on temperature response time\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\u003c\/table\u003e\n\u003cbr\u003e\u003cbr\u003e\n\u003ctable\u003e\n\t\u003ctable border=\"1\"\u003e\n\t\t\u003ctr\u003e\u003ctd colspan=\"2\"\u003e\n\u003cstrong\u003ePressure (Absolute) and Water Level Measurements MX20L-04\n\n\u003c\/strong\u003e\n\u003c\/td\u003e\u003c\/tr\u003e\n\t\u003ctr\u003e\n\u003ctd\u003eOperation Range\n\u003c\/td\u003e\n\u003ctd\u003e \n0 to 145 kPa (0 to 21 psia); approximately 0 to 4 m (0 to 13 ft) of water depth at sea level, or 0 to 7 m (0 to 23 ft) of water at 3,000 m (10,000 ft) of altitude\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFactory Calibrated Range\n\u003c\/td\u003e\n\u003ctd\u003e \n69 to 145 kPa (10 to 21 psia), 0° to 40°C (32° to 104°F)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBurst Pressure\n\u003c\/td\u003e\n\u003ctd\u003e\n310 kPa (45 psia) or 18 m (60 ft) Depth\u003c\/td\u003e\n\u003c\/tr\u003e\n\t\u003ctr\u003e\n\u003ctd\u003eWater Level Accuracy*\n\t\t\u003c\/td\u003e\n\u003ctd\u003eTypical error: ±0.1% FS, 0.4 cm (0.013 ft) Water \nMaximum error: ±0.2% FS, 0.8 cm (0.026 ft) Water\u003c\/td\u003e\n\u003c\/tr\u003e\n\t\n\t\u003ctr\u003e\n\u003ctd\u003eRaw Pressure Accuracy**\n\u003c\/td\u003e\n\u003ctd\u003e0.3% FS, 0.43 kPa (0.063 psi) Maximum error\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\t\u003ctr\u003e\n\u003ctd\u003eResolution\u003c\/td\u003e\n\u003ctd\u003e \n\n\u0026lt;0.014 kPa (0.002 psi), 0.14 cm (0.005 ft) Water\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePressure Response Time (90%)***\n\u003c\/td\u003e\n\u003ctd\u003e\u0026lt;1 second at a stable temperature; measurement accuracy also depends on temperature response time\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\u003c\/table\u003e\n\u003cbr\u003e\u003cbr\u003e\n\n\u003ctable\u003e\n\t\u003ctable border=\"1\"\u003e\n\t\t\u003ctr\u003e\u003ctd colspan=\"2\"\u003e\n\u003cstrong\u003eLogger\n\n\n\u003c\/strong\u003e\n\u003c\/td\u003e\u003c\/tr\u003e\n\t\u003ctr\u003e\n\u003ctd\u003eWireless Standard\n\u003c\/td\u003e\n\u003ctd\u003e \nBluetooth 5 LE\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTransmission Range\n\n\u003c\/td\u003e\n\u003ctd\u003e \nApproximately 30.5 m (100 ft) line-of-sight\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRadio Power\n\n\u003c\/td\u003e\n\u003ctd\u003e1mW (0 dBm)\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\t\u003ctr\u003e\n\u003ctd\u003eReal-time Clock\n\n\t\t\u003c\/td\u003e\n\u003ctd\u003e±1 minute per month 0° to 50°C (32° to 122°F)\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\t\n\t\u003ctr\u003e\n\u003ctd\u003eBattery\n\n\u003c\/td\u003e\n\u003ctd\u003e\n2\/3 AA, 3.6 Volt lithium, factory-replaceable\n\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\t\t\n\u003ctr\u003e\n\u003ctd\u003eBattery Life (Typical Use)\n\u003c\/td\u003e\n\u003ctd\u003e\n3 years with 1-minute logging and Bluetooth always on\u003cbr\u003e\n7 years with 1-minute logging and Bluetooth off and LED off\u003cbr\u003e\n10 years with 5-minute logging and Bluetooth off and LED off\u003c\/td\u003e\n\u003c\/tr\u003e\t\t\n\t\t\u003ctr\u003e\n\u003ctd\u003eBattery Indication\n\u003c\/td\u003e\n\u003ctd\u003eBattery status shown in HOBOconnect app (approximate)\n\u003c\/td\u003e\n\u003c\/tr\u003e\t\t\n\t\t\u003ctr\u003e\n\u003ctd\u003eMemory (Non-volatile)\n\u003c\/td\u003e\n\u003ctd\u003eApproximately 400,000 sets of pressure and temperature measurements\n\u003c\/td\u003e\n\u003c\/tr\u003e\t\t\n\t\t\u003ctr\u003e\n\u003ctd\u003eData Download Time (with Bluetooth 5+ devices)\n\u003c\/td\u003e\n\u003ctd\u003eApproximately 3.5 minutes; 100,000 measurements \u0026lt; 1 minute\n\u003c\/td\u003e\n\u003c\/tr\u003e\t\t\n\t\t\u003ctr\u003e\n\u003ctd\u003eWeight\u003c\/td\u003e\n\u003ctd\u003e\nApproximately 154 g (5.43 oz) in air\n \nApproximately 53.9 g (1.9 oz) in fresh water\u003c\/td\u003e\n\u003c\/tr\u003e\t\t\n\t\t\u003ctr\u003e\n\u003ctd\u003eDimensions\u003c\/td\u003e\n\u003ctd\u003e3.18 cm (1.25 inches) diameter, 15.24 cm (6.0 inches) length; mounting hole 6.3 mm (0.25 inches) diameter\n\u003c\/td\u003e\n\u003c\/tr\u003e\t\t\n\t\t\u003ctr\u003e\n\u003ctd\u003eWetted Materials\n\u003c\/td\u003e\n\u003ctd\u003ePolypropylene housing and lanyard; Viton and Buna-N O-rings; ceramic sensor in acetal end cap; stainless steel screws suitable for saltwater\n\u003c\/td\u003e\n\u003c\/tr\u003e\t\t\n\t\t\u003ctr\u003e\n\u003ctd\u003eLogging Modes\n\u003c\/td\u003e\n\u003ctd\u003eFixed-interval (normal or statistics), burst or multiple intervals with up to 8 user-defined intervals and durations; logging intervals from 1 second to 18 hours. Refer to the HOBOconnect User’s Guide for details.\n\u003c\/td\u003e\n\u003c\/tr\u003e\t\t\n\t\t\u003ctr\u003e\n\u003ctd\u003eStart Modes\n\u003c\/td\u003e\n\u003ctd\u003eImmediate, next interval, date \u0026amp; time, button start (fob or app)\n\u003c\/td\u003e\n\u003c\/tr\u003e\t\t\n\t\t\u003ctr\u003e\n\u003ctd\u003eStop Modes\n\u003c\/td\u003e\n\u003ctd\u003eMemory full, never stop (overwrite oldest data), date \u0026amp; time, or after set logging period\n\u003c\/td\u003e\n\u003c\/tr\u003e\t\t\n\t\t\u003ctr\u003e\n\u003ctd\u003ePause\u003c\/td\u003e\n\u003ctd\u003ePause and restart with HOBOconnect app\n\u003c\/td\u003e\n\u003c\/tr\u003e\t\t\n\t\t\u003ctr\u003e\n\u003ctd\u003eAlarms\u003c\/td\u003e\n\u003ctd\u003eLog high- or low-alarm events; alarm status shown in HOBOconnect app\n\u003c\/td\u003e\n\u003c\/tr\u003e\t\t\n\t\t\u003ctr\u003e\n\u003ctd\u003eEnvironmental Rating\n\u003c\/td\u003e\n\u003ctd\u003eIP68\n\u003c\/td\u003e\n\u003c\/tr\u003e\t\t\n\t\t\u003ctr\u003e\u003ctd colspan=\"2\"\u003e \n* Water Level Accuracy: With accurate reference water level measurement, known water density, accurate barometric compensation data, and a stable temperature environment.\u003cbr\u003e\n\n** Raw Pressure Accuracy: Absolute pressure sensor accuracy includes all sensor drift, temperature, and hysteresis-induced errors.\u003cbr\u003e\n\n*** Changes in Temperature: Allow 20 minutes in water to achieve full temperature compensation of the pressure sensor. Maximum error due to rapid thermal changes is approximately 0.5%.\u003c\/td\u003e\u003c\/tr\u003e\t\t\n\t\n\u003c\/table\u003e\n\u003c\/table\u003e\n\n\u003cbr\u003e\u003cbr\u003e\n\n\u003ctable\u003e\n\t\u003ctable border=\"1\"\u003e\n\t\t\u003ctr\u003e\u003ctd colspan=\"2\"\u003e\n\u003cstrong\u003eTemperature Measurements (All Models)\n\n\n\u003c\/strong\u003e\n\u003c\/td\u003e\u003c\/tr\u003e\n\t\u003ctr\u003e\n\u003ctd\u003eOperation Range\n\u003c\/td\u003e\n\u003ctd\u003e \n-20° to 50°C (-4° to 122°F)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAccuracy\n\u003c\/td\u003e\n\u003ctd\u003e \n±0.2°C from 0° to 50°C (±0.36°F from 32° to 122°F)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eResolution\n\u003c\/td\u003e\n\u003ctd\u003e0.10°C at 25°C (0.18°F at 77°F)\u003c\/td\u003e\n\u003c\/tr\u003e\n\t\u003ctr\u003e\n\u003ctd\u003eResponse Time (90%)\n\t\t\u003c\/td\u003e\n\u003ctd\u003e10 minutes in water (typical) \nMaximum error: ±0.2% FS, 0.8 cm (0.026 ft) Water\u003c\/td\u003e\n\u003c\/tr\u003e\n\t\n\t\u003ctr\u003e\n\u003ctd\u003eStability (Drift)\n\n\u003c\/td\u003e\n\u003ctd\u003e\n0.1°C per year (0.18°F per year)\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\t\n\u003c\/table\u003e\n\u003c\/table\u003e","published_at":"2025-04-09T12:27:12","created_at":"2025-04-09T12:25:50","vendor":"Onset","type":"Data Loggers","tags":["Absolute Pressure","Barometric Pressure","Differential Pressure","Temperature","Water Level","Water Quality","Water Temperature"],"price":62800,"price_min":62800,"price_max":62800,"price_varies":false,"compare_at_price":null,"compare_at_price_min":0,"compare_at_price_max":0,"compare_at_price_varies":true,"all_variant_ids":[62060262555807,62117492261023],"variants":[{"id":62060262555807,"product_id":10716062154911,"product_handle":"hobo-mx-water-level-data-logger-mx20l-04-copy","title":"Default title","option1":"1+","option2":null,"option3":null,"sku":"E348-MX20L-01","requires_shipping":true,"taxable":true,"featured_image":null,"image_id":null,"available":true,"name":"HOBO MX Water Level Data Logger MMX20L-01 - 1+","options":["1+"],"price":62800,"weight":0,"compare_at_price":null,"inventory_quantity":0,"inventory_management":null,"inventory_policy":"deny","inventory_in_cart":0,"inventory_remaining":0,"incoming":false,"next_incoming_date":null,"taxable":true,"barcode":"","qb_lookup":{"levels": {"1": {"id":62060262555807,"price":62800},"10": {"id":62117492261023,"price":59660}},"qb_price_varies":true,"grid":"\u003ctable class='shappify_qb_grid'\u003e \u003cthead\u003e \u003ctr\u003e \u003cth\u003eQty\u003c\/th\u003e \u003cth\u003ePrice\u003c\/th\u003e \u003c\/tr\u003e \u003c\/thead\u003e \u003ctbody\u003e \u003ctr\u003e \u003ctd\u003eBuy 1\u003c\/td\u003e \u003ctd\u003e$628.00 ea\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \u003ctd\u003eBuy 10\u003c\/td\u003e \u003ctd\u003e$596.60 ea\u003c\/td\u003e \u003c\/tr\u003e \u003c\/tbody\u003e \u003c\/table\u003e\u003cstyle\u003etable.shappify_qb_grid{ width:100%;} table.shappify_qb_grid offers thead, table.shappify_qb_grid thead tr, table.shappify_qb_grid thead th, table.shappify_qb_grid thead td{background:#D6D6D6;color:#000000;font-weight:bold;} table.shappify_qb_grid tbody tr:nth-child(odd) {background-color:#FFFFFF;} table.shappify_qb_grid tbody tr:nth-child(even) {background-color:#EFEFEF;} table.shappify_qb_grid tbody {color:#000000;} table.shappify_qb_grid, table.shappify_qb_grid th, table.shappify_qb_grid td { text-align:left;padding:5px;border: 1px solid #CCCCCC;border-collapse: collapse;} table.shappify_qb_grid {margin: 0px;}\u003c\/style\u003e"}}],"available":true,"images":["\/\/shoponset.hoskin.ca\/cdn\/shop\/files\/HOBO-Water-Level-Logger-MX20L-01_8a62ef2e-f67b-459c-af91-7fea2f6640bd.png?v=1744223501","\/\/shoponset.hoskin.ca\/cdn\/shop\/files\/HOBOMX20LWaterLevelLogger_e570b37a-1423-4629-b100-358f5c96e60b.jpg?v=1744223501","\/\/shoponset.hoskin.ca\/cdn\/shop\/files\/HOBO-MX20L-wide_7043ce5e-4c4b-4b74-ae91-a290fe3706ed.jpg?v=1744223501","\/\/shoponset.hoskin.ca\/cdn\/shop\/files\/HOBO-MX20L-field_5f63c81b-cd3e-4f00-828f-d4907e09a892.jpg?v=1744223501"],"featured_image":"\/\/shoponset.hoskin.ca\/cdn\/shop\/files\/HOBO-Water-Level-Logger-MX20L-01_8a62ef2e-f67b-459c-af91-7fea2f6640bd.png?v=1744223501","options":["Title"],"url":"\/products\/hobo-mx-water-level-data-logger-mx20l-04-copy","hasQB":true}
Data Loggers
HOBO MX Water Level Data Logger MMX20L-02
SKU: E348-MX20L-02
Important Info Overview Bluetooth data offloadA low-cost, research-grade data logger with Bluetooth data offload to continuously monitor water level and temperature. Measures at depths of...
Important Info Overview Bluetooth data offloadA low-cost, research-grade data logger with Bluetooth data offload to...
Available Item
$628.00
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{"id":10716062253215,"title":"HOBO MX Water Level Data Logger MMX20L-02","handle":"hobo-mx-water-level-data-logger-mmx20l-01-copy","description":"\u003ch5\u003eImportant Info\u003c\/h5\u003e\n\u003ch3\u003eOverview\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003e\u003cstrong\u003eBluetooth data offload\u003c\/strong\u003e\u003cbr\u003eA low-cost, research-grade data logger with Bluetooth data offload to continuously monitor water level and temperature. Measures at depths of up to 13, 30, or 100 feet in a wide range of underwater environments, both freshwater and saltwater.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThe MX20L Water Level Logger brings you all the same great features as the U20L and more!\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eIntegrating Bluetooth for fast and reliable data download, the MX20L logger eliminates the need to plug your logger into a base station or shuttle to offload data in the field, ensuring continuous water level and temperature monitoring. With options to measure at depth ranges of 13, 30, or 100 feet in a wide range of underwater environments, this rugged logger features 0.1% measurement accuracy, a durable polypropylene housing for use in both freshwater and saltwater, and a non-vented design for convenient and reliable deployment.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThe MX20L comes with a magnetic activation fob that can \"wake up\" the logger to activate its Bluetooth communication for configuration and data download. The included fob comes with a lanyard to prevent losing or dropping the fob in the field. \u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThis logger records absolute pressure, which is later converted to water level readings by our HOBOconnect software. To compensate for barometric pressure changes, you can use another HOBO MX20L Water Level logger as a barometric reference. \u003c\/span\u003e\u003c\/p\u003e\n\u003cdiv\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003ch3\u003eHighlighted Features\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eSelf-contained, non-vented design enables easy deployment\u003c\/li\u003e\n\u003cli\u003eIdeal for use in both freshwater and saltwater environments, including wells, streams, lakes, wetlands, and tidal areas\u003c\/li\u003e\n\u003cli\u003eDepth measurement options of up to 13, 30, or 100 feet depending on model\u003c\/li\u003e\n\u003cli\u003eDurable ceramic pressure sensor withstands freezing\u003c\/li\u003e\n\u003cli\u003eStreamlined data offload via Bluetooth to the free HOBOconnect app\u003c\/li\u003e\n\u003cli\u003eHOBOconnect app provides easy extraction and visulization of water level data\u003c\/li\u003e\n\u003cli\u003eExtended battery life up to 10 years (power-saving mode requires magnetic fob to activate Bluetooth for data download)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cbr\u003e\u003c\/h3\u003e\n\u003ch5\u003eSpecifications\u003c\/h5\u003e\u003ctable\u003e\n\t\u003ctable border=\"1\"\u003e\n\t\t\u003ctr\u003e\u003ctd colspan=\"2\"\u003e\n\u003cstrong\u003ePressure (Absolute) and Water Level Measurements MX20L-01\u003c\/strong\u003e\n\u003c\/td\u003e\u003c\/tr\u003e\n\t\u003ctr\u003e\n\u003ctd\u003eOperation Range\n\u003c\/td\u003e\n\u003ctd\u003e 0 to 207 kPa (0 to 30 psia); approximately 0 to 9 m (0 to 30 ft) of water depth at sea level, or 0 to 12 m (0 to 40 ft) of water at 3,000 m (10,000 ft) of altitude\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFactory Calibrated Range\n\u003c\/td\u003e\n\u003ctd\u003e 69 to 207 kPa, 0° to 40°C (10 to 30 psia, 32° to 104°F)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBurst Pressure\n\u003c\/td\u003e\n\u003ctd\u003e\n310 kPa or 18 m depth (45 psia or 60 ft depth)\u003c\/td\u003e\n\u003c\/tr\u003e\n\t\u003ctr\u003e\n\u003ctd\u003eWater Level Accuracy*\n\u003c\/td\u003e\n\u003ctd\u003eTypical error: ±0.1% FS, 1.0 cm (0.03 ft) Water \nMaximum error: ±0.2% FS, 2.0 cm (0.06 ft) Water\u003c\/td\u003e\n\u003c\/tr\u003e\n\t\n\t\u003ctr\u003e\n\u003ctd\u003eRaw Pressure Accuracy**\n\u003c\/td\u003e\n\u003ctd\u003e ±0.3% FS, 0.62 kPa (0.09 psi) Maximum error\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\t\u003ctr\u003e\n\u003ctd\u003eResolution\u003c\/td\u003e\n\u003ctd\u003e \n\u0026lt;0.02 kPa Water (0.007 ft Water)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePressure Response Time (90%)***\n\u003c\/td\u003e\n\u003ctd\u003e\u0026lt;1 second at a stable temperature; measurement accuracy also depends on temperature response time\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\u003c\/table\u003e\n\n\u003cbr\u003e\u003cbr\u003e\n\n\u003ctable\u003e\n\t\u003ctable border=\"1\"\u003e\n\t\t\u003ctr\u003e\u003ctd colspan=\"2\"\u003e\n\u003cstrong\u003ePressure (Absolute) and Water Level Measurements MX20L-02\n\u003c\/strong\u003e\n\u003c\/td\u003e\u003c\/tr\u003e\n\t\u003ctr\u003e\n\u003ctd\u003eOperation Range\n\u003c\/td\u003e\n\u003ctd\u003e 0 to 400 kPa (0 to 58 psia); approximately 0 to 30.6 m (0 to 100 ft) of water depth at sea level, or 0 to 33.6 m (0 to 111 ft) of water at 3,000 m (10,000 ft) of altitude\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFactory Calibrated Range\n\u003c\/td\u003e\n\u003ctd\u003e 69 to 400 kPa (10 to 58 psia), 0° to 40°C (32° to 104°F)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBurst Pressure\n\u003c\/td\u003e\n\u003ctd\u003e\n500 kPa (72.5 psia) or 40.8 m (134 ft) Depth\u003c\/td\u003e\n\u003c\/tr\u003e\n\t\u003ctr\u003e\n\u003ctd\u003eWater Level Accuracy*\n\u003c\/td\u003e\n\u003ctd\u003eTypical error: ±0.1% FS, 3.0 cm (0.1 ft) Water\u003cbr\u003e\nMaximum error: ±0.2% FS, 6.0 cm (0.2 ft) Water\u003c\/td\u003e\n\u003c\/tr\u003e\n\t\n\t\u003ctr\u003e\n\u003ctd\u003eRaw Pressure Accuracy**\n\u003c\/td\u003e\n\u003ctd\u003e±0.3% FS, 1.20 kPa (0.17 psi) Maximum error\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\t\u003ctr\u003e\n\u003ctd\u003eResolution\u003c\/td\u003e\n\u003ctd\u003e \n\n\u0026lt;0.04 kPa (0.006 psi), 0.41 cm (0.013 ft) Water\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePressure Response Time (90%)***\n\u003c\/td\u003e\n\u003ctd\u003e\u0026lt;1 second at a stable temperature; measurement accuracy also depends on temperature response time\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\u003c\/table\u003e\n\u003cbr\u003e\u003cbr\u003e\n\u003ctable\u003e\n\t\u003ctable border=\"1\"\u003e\n\t\t\u003ctr\u003e\u003ctd colspan=\"2\"\u003e\n\u003cstrong\u003ePressure (Absolute) and Water Level Measurements MX20L-04\n\n\u003c\/strong\u003e\n\u003c\/td\u003e\u003c\/tr\u003e\n\t\u003ctr\u003e\n\u003ctd\u003eOperation Range\n\u003c\/td\u003e\n\u003ctd\u003e \n0 to 145 kPa (0 to 21 psia); approximately 0 to 4 m (0 to 13 ft) of water depth at sea level, or 0 to 7 m (0 to 23 ft) of water at 3,000 m (10,000 ft) of altitude\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFactory Calibrated Range\n\u003c\/td\u003e\n\u003ctd\u003e \n69 to 145 kPa (10 to 21 psia), 0° to 40°C (32° to 104°F)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBurst Pressure\n\u003c\/td\u003e\n\u003ctd\u003e\n310 kPa (45 psia) or 18 m (60 ft) Depth\u003c\/td\u003e\n\u003c\/tr\u003e\n\t\u003ctr\u003e\n\u003ctd\u003eWater Level Accuracy*\n\t\t\u003c\/td\u003e\n\u003ctd\u003eTypical error: ±0.1% FS, 0.4 cm (0.013 ft) Water \nMaximum error: ±0.2% FS, 0.8 cm (0.026 ft) Water\u003c\/td\u003e\n\u003c\/tr\u003e\n\t\n\t\u003ctr\u003e\n\u003ctd\u003eRaw Pressure Accuracy**\n\u003c\/td\u003e\n\u003ctd\u003e0.3% FS, 0.43 kPa (0.063 psi) Maximum error\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\t\u003ctr\u003e\n\u003ctd\u003eResolution\u003c\/td\u003e\n\u003ctd\u003e \n\n\u0026lt;0.014 kPa (0.002 psi), 0.14 cm (0.005 ft) Water\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePressure Response Time (90%)***\n\u003c\/td\u003e\n\u003ctd\u003e\u0026lt;1 second at a stable temperature; measurement accuracy also depends on temperature response time\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\u003c\/table\u003e\n\u003cbr\u003e\u003cbr\u003e\n\n\u003ctable\u003e\n\t\u003ctable border=\"1\"\u003e\n\t\t\u003ctr\u003e\u003ctd colspan=\"2\"\u003e\n\u003cstrong\u003eLogger\n\n\n\u003c\/strong\u003e\n\u003c\/td\u003e\u003c\/tr\u003e\n\t\u003ctr\u003e\n\u003ctd\u003eWireless Standard\n\u003c\/td\u003e\n\u003ctd\u003e \nBluetooth 5 LE\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTransmission Range\n\n\u003c\/td\u003e\n\u003ctd\u003e \nApproximately 30.5 m (100 ft) line-of-sight\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRadio Power\n\n\u003c\/td\u003e\n\u003ctd\u003e1mW (0 dBm)\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\t\u003ctr\u003e\n\u003ctd\u003eReal-time Clock\n\n\t\t\u003c\/td\u003e\n\u003ctd\u003e±1 minute per month 0° to 50°C (32° to 122°F)\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\t\n\t\u003ctr\u003e\n\u003ctd\u003eBattery\n\n\u003c\/td\u003e\n\u003ctd\u003e\n2\/3 AA, 3.6 Volt lithium, factory-replaceable\n\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\t\t\n\u003ctr\u003e\n\u003ctd\u003eBattery Life (Typical Use)\n\u003c\/td\u003e\n\u003ctd\u003e\n3 years with 1-minute logging and Bluetooth always on\u003cbr\u003e\n7 years with 1-minute logging and Bluetooth off and LED off\u003cbr\u003e\n10 years with 5-minute logging and Bluetooth off and LED off\u003c\/td\u003e\n\u003c\/tr\u003e\t\t\n\t\t\u003ctr\u003e\n\u003ctd\u003eBattery Indication\n\u003c\/td\u003e\n\u003ctd\u003eBattery status shown in HOBOconnect app (approximate)\n\u003c\/td\u003e\n\u003c\/tr\u003e\t\t\n\t\t\u003ctr\u003e\n\u003ctd\u003eMemory (Non-volatile)\n\u003c\/td\u003e\n\u003ctd\u003eApproximately 400,000 sets of pressure and temperature measurements\n\u003c\/td\u003e\n\u003c\/tr\u003e\t\t\n\t\t\u003ctr\u003e\n\u003ctd\u003eData Download Time (with Bluetooth 5+ devices)\n\u003c\/td\u003e\n\u003ctd\u003eApproximately 3.5 minutes; 100,000 measurements \u0026lt; 1 minute\n\u003c\/td\u003e\n\u003c\/tr\u003e\t\t\n\t\t\u003ctr\u003e\n\u003ctd\u003eWeight\u003c\/td\u003e\n\u003ctd\u003e\nApproximately 154 g (5.43 oz) in air\n \nApproximately 53.9 g (1.9 oz) in fresh water\u003c\/td\u003e\n\u003c\/tr\u003e\t\t\n\t\t\u003ctr\u003e\n\u003ctd\u003eDimensions\u003c\/td\u003e\n\u003ctd\u003e3.18 cm (1.25 inches) diameter, 15.24 cm (6.0 inches) length; mounting hole 6.3 mm (0.25 inches) diameter\n\u003c\/td\u003e\n\u003c\/tr\u003e\t\t\n\t\t\u003ctr\u003e\n\u003ctd\u003eWetted Materials\n\u003c\/td\u003e\n\u003ctd\u003ePolypropylene housing and lanyard; Viton and Buna-N O-rings; ceramic sensor in acetal end cap; stainless steel screws suitable for saltwater\n\u003c\/td\u003e\n\u003c\/tr\u003e\t\t\n\t\t\u003ctr\u003e\n\u003ctd\u003eLogging Modes\n\u003c\/td\u003e\n\u003ctd\u003eFixed-interval (normal or statistics), burst or multiple intervals with up to 8 user-defined intervals and durations; logging intervals from 1 second to 18 hours. Refer to the HOBOconnect User’s Guide for details.\n\u003c\/td\u003e\n\u003c\/tr\u003e\t\t\n\t\t\u003ctr\u003e\n\u003ctd\u003eStart Modes\n\u003c\/td\u003e\n\u003ctd\u003eImmediate, next interval, date \u0026amp; time, button start (fob or app)\n\u003c\/td\u003e\n\u003c\/tr\u003e\t\t\n\t\t\u003ctr\u003e\n\u003ctd\u003eStop Modes\n\u003c\/td\u003e\n\u003ctd\u003eMemory full, never stop (overwrite oldest data), date \u0026amp; time, or after set logging period\n\u003c\/td\u003e\n\u003c\/tr\u003e\t\t\n\t\t\u003ctr\u003e\n\u003ctd\u003ePause\u003c\/td\u003e\n\u003ctd\u003ePause and restart with HOBOconnect app\n\u003c\/td\u003e\n\u003c\/tr\u003e\t\t\n\t\t\u003ctr\u003e\n\u003ctd\u003eAlarms\u003c\/td\u003e\n\u003ctd\u003eLog high- or low-alarm events; alarm status shown in HOBOconnect app\n\u003c\/td\u003e\n\u003c\/tr\u003e\t\t\n\t\t\u003ctr\u003e\n\u003ctd\u003eEnvironmental Rating\n\u003c\/td\u003e\n\u003ctd\u003eIP68\n\u003c\/td\u003e\n\u003c\/tr\u003e\t\t\n\t\t\u003ctr\u003e\u003ctd colspan=\"2\"\u003e \n* Water Level Accuracy: With accurate reference water level measurement, known water density, accurate barometric compensation data, and a stable temperature environment.\u003cbr\u003e\n\n** Raw Pressure Accuracy: Absolute pressure sensor accuracy includes all sensor drift, temperature, and hysteresis-induced errors.\u003cbr\u003e\n\n*** Changes in Temperature: Allow 20 minutes in water to achieve full temperature compensation of the pressure sensor. Maximum error due to rapid thermal changes is approximately 0.5%.\u003c\/td\u003e\u003c\/tr\u003e\t\t\n\t\n\u003c\/table\u003e\n\u003c\/table\u003e\n\n\u003cbr\u003e\u003cbr\u003e\n\n\u003ctable\u003e\n\t\u003ctable border=\"1\"\u003e\n\t\t\u003ctr\u003e\u003ctd colspan=\"2\"\u003e\n\u003cstrong\u003eTemperature Measurements (All Models)\n\n\n\u003c\/strong\u003e\n\u003c\/td\u003e\u003c\/tr\u003e\n\t\u003ctr\u003e\n\u003ctd\u003eOperation Range\n\u003c\/td\u003e\n\u003ctd\u003e \n-20° to 50°C (-4° to 122°F)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAccuracy\n\u003c\/td\u003e\n\u003ctd\u003e \n±0.2°C from 0° to 50°C (±0.36°F from 32° to 122°F)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eResolution\n\u003c\/td\u003e\n\u003ctd\u003e0.10°C at 25°C (0.18°F at 77°F)\u003c\/td\u003e\n\u003c\/tr\u003e\n\t\u003ctr\u003e\n\u003ctd\u003eResponse Time (90%)\n\t\t\u003c\/td\u003e\n\u003ctd\u003e10 minutes in water (typical) \nMaximum error: ±0.2% FS, 0.8 cm (0.026 ft) Water\u003c\/td\u003e\n\u003c\/tr\u003e\n\t\n\t\u003ctr\u003e\n\u003ctd\u003eStability (Drift)\n\n\u003c\/td\u003e\n\u003ctd\u003e\n0.1°C per year (0.18°F per year)\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\t\n\u003c\/table\u003e\n\u003c\/table\u003e","published_at":"2025-04-09T12:28:10","created_at":"2025-04-09T12:27:22","vendor":"Onset","type":"Data Loggers","tags":["Absolute Pressure","Barometric Pressure","Differential Pressure","Temperature","Water Level","Water Quality","Water Temperature"],"price":62800,"price_min":62800,"price_max":62800,"price_varies":false,"compare_at_price":null,"compare_at_price_min":0,"compare_at_price_max":0,"compare_at_price_varies":true,"all_variant_ids":[62060262686879,62117492293791],"variants":[{"id":62060262686879,"product_id":10716062253215,"product_handle":"hobo-mx-water-level-data-logger-mmx20l-01-copy","title":"Default title","option1":"1+","option2":null,"option3":null,"sku":"E348-MX20L-02","requires_shipping":true,"taxable":true,"featured_image":null,"image_id":null,"available":true,"name":"HOBO MX Water Level Data Logger MMX20L-02 - 1+","options":["1+"],"price":62800,"weight":0,"compare_at_price":null,"inventory_quantity":0,"inventory_management":null,"inventory_policy":"deny","inventory_in_cart":0,"inventory_remaining":0,"incoming":false,"next_incoming_date":null,"taxable":true,"barcode":"","qb_lookup":{"levels": {"1": {"id":62060262686879,"price":62800},"10": {"id":62117492293791,"price":59660}},"qb_price_varies":true,"grid":"\u003ctable class='shappify_qb_grid'\u003e \u003cthead\u003e \u003ctr\u003e \u003cth\u003eQty\u003c\/th\u003e \u003cth\u003ePrice\u003c\/th\u003e \u003c\/tr\u003e \u003c\/thead\u003e \u003ctbody\u003e \u003ctr\u003e \u003ctd\u003eBuy 1\u003c\/td\u003e \u003ctd\u003e$628.00 ea\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \u003ctd\u003eBuy 10\u003c\/td\u003e \u003ctd\u003e$596.60 ea\u003c\/td\u003e \u003c\/tr\u003e \u003c\/tbody\u003e \u003c\/table\u003e\u003cstyle\u003etable.shappify_qb_grid{ width:100%;} table.shappify_qb_grid offers thead, table.shappify_qb_grid thead tr, table.shappify_qb_grid thead th, table.shappify_qb_grid thead td{background:#D6D6D6;color:#000000;font-weight:bold;} table.shappify_qb_grid tbody tr:nth-child(odd) {background-color:#FFFFFF;} table.shappify_qb_grid tbody tr:nth-child(even) {background-color:#EFEFEF;} table.shappify_qb_grid tbody {color:#000000;} table.shappify_qb_grid, table.shappify_qb_grid th, table.shappify_qb_grid td { text-align:left;padding:5px;border: 1px solid #CCCCCC;border-collapse: collapse;} table.shappify_qb_grid {margin: 0px;}\u003c\/style\u003e"}}],"available":true,"images":["\/\/shoponset.hoskin.ca\/cdn\/shop\/files\/HOBO-Water-Level-Logger-MX20L-01_8a62ef2e-f67b-459c-af91-7fea2f6640bd.png?v=1744223501","\/\/shoponset.hoskin.ca\/cdn\/shop\/files\/HOBOMX20LWaterLevelLogger_e570b37a-1423-4629-b100-358f5c96e60b.jpg?v=1744223501","\/\/shoponset.hoskin.ca\/cdn\/shop\/files\/HOBO-MX20L-wide_7043ce5e-4c4b-4b74-ae91-a290fe3706ed.jpg?v=1744223501","\/\/shoponset.hoskin.ca\/cdn\/shop\/files\/HOBO-MX20L-field_5f63c81b-cd3e-4f00-828f-d4907e09a892.jpg?v=1744223501"],"featured_image":"\/\/shoponset.hoskin.ca\/cdn\/shop\/files\/HOBO-Water-Level-Logger-MX20L-01_8a62ef2e-f67b-459c-af91-7fea2f6640bd.png?v=1744223501","options":["Title"],"url":"\/products\/hobo-mx-water-level-data-logger-mmx20l-01-copy","hasQB":true}