The HOBO MicroRX Water Level Station is a cellular, web-enabled water level monitoring solution for stormwater, floodwater, irrigation, hydrologic, and environmental applications. Pre-programmed water flow formulas for select weirs, flumes, and a stage discharge table result in an easy and intuitive configuration. New water flow and accumulated rainfall calculations, which are performed directly on the station at time of measurement, trigger immediate notifications of critical water level conditions. The compact and durable station, together with the non-vented water level sensor, enables harsh condition deployments and reliable monitoring. The optional integrated solar panel or battery power, with a wide range of plug-and-play smart sensors, supports flexible environmental monitoring.
Highlighted Features
- Station-side alarms for water flow and accumulated rainfall triggered at time of measurement
- Non-vented ceramic water level sensor with a choice of four ranges
- Interchangeable, Kevlar-reinforced water level sensor cables
- Integrated barometric pressure sensor
- Compact IP66/NEMA 4X enclosure
- Built-in LCD confirms proper setup and operation
- Two power options:
- Integrated 1.7 W solar panel with rechargeable battery pack
- 5 W and 15 W external solar panels can be added (RX2104 only)
- User-replaceable AA lithium batteries
- Inputs for five plug-and-play smart sensors
- Up to 10-minute connections rates via 4G cellular data plans
- Cloud-based monitoring and data access through HOBOlink
In what environment does this data logger operate?
This data logger operates in an underwater environment.
What measurements does this data logger support?
The RX2100-WL data logger supports the following measurements: Absolute Pressure, Barometric Pressure, Evapotranspiration, Leaf Wetness, Light Intensity, PAR, Pulse Input, Rainfall, Relative Humidity, Soil Moisture, Temperature, Water Level and Wind
HOBO MicroRX Water Level Station
The new cellular, web-enabled HOBO® MicroRX station is partnered with Onset’s own water level sensor to deliver water level and flow monitoring data to cloud-based HOBOlink® software. Spend more time focusing on results, and less time on configuration and data access.
Please Contact an Environmental Representative to Guide You Through Building the System
Step 1: Choose Your StationRX 2104 MicroRX Water Level Station - built-in solar panel
Note: Larger external solar panels can be used with this model.
RX 2103 MicroRX Water Level Station - battery powered
Note: When AC power is available, it can be used as the primary power, with battery as back-up. Order the P-AC-1 AC Adapter
Step 2: Data Plans
SP-813 - Global Standard (4GB)
SP-811 - Global Basic (4GB)
Step 3: Water Level Sensors
The following sensors are compatible with the water level stations. Please select one sensor and one cable.
MX2001-04-S - Freshwater Stainless Steel Level Sensor, 4m (13’)
MX2001-01-S - Freshwater Stainless Steel Level Sensor, 9m (30’)
MX2001-02-S - Freshwater Stainless Steel Level Sensor, 30m (100’)
MX2001-03-S - Freshwater Stainless Steel Level Sensor, 76m (250’)
MX2001-04-Ti-S - Saltwater Titanium Level Sensor, 4m (13’), Ti
MX2001-01-Ti-S - Saltwater Titanium Level Sensor, 9m (30’), Ti
Select One cable:
The 1, 5, 10, 15, 30, and 60 meter cables are typically in stock, while other cables are custom lengths with a 1-2 week lead time.
.2m-2.8m
3m-16m
17m- 30m
33m-66m
69m-99m
100m-200m
210m-300m
310m-400m
Mounting:
WELL-CAP-025cm (2") Well Cap for MicroRX Water Level Stations
Step 4: Environmental Sensors
Barometric measurement is built into unit so additional sensor not needed.
Station includes 5 smart sensor inputs and supports up to 15 channels.
4-20mA
S-CIA-CM14 - 12-bit 4-20mA Input Adapter Sensor
DC Voltage (0-2.5v, 5v, 10v)
S-VIA-CM14 - 12-bit Voltage Input Adapter Sensor
Leaf Wetness
S-LWA-M003 - Leaf Wetness Smart Sensor
Light Intensity
S-LIA-M003 - Photosynthetic Light (PAR) Smart Sensor
S-LIB-M003 - S-LIB-M003Solar Radiation (Silicon Pyranometer) Smart Sensor
Pulse Input
S-UCC-M001 - Electronic Switch Pulse Input Adapter - 1 meter Sensor
S-UCC-M006 - Electronic Switch Pulse Input Adapter - 6 meters Sensor
S-UCD-M001 - Contact Closure Pulse Input Adapter - 1 meter Sensor
S-UCD-M006 - Contact Closure Pulse Input Adapter - 6 meters Sensor
Rainfall
S-RGA-M002 - 0.01" Rain Gauge (2m cable) Smart Sensor
S-RGB-M002 - 0.2 mm Rainfall (2m cable) Smart Sensor
S-RGE-M002 - Davis® 0.01" Rain Gauge Smart Sensor
S-RGF-M002 - Davis® 0.2 mm Rain Gauge Smart Sensor
Relative Humidity
S-THB-M002 - 12-bit Temperature/Relative Humidity (2m cable) Smart Sensor
S-THB-M008 - 12-bit Temperature/Relative Humidity (8m cable) Smart Sensor
Soil Moisture
S-SMC-M005 - EC5 Soil Moisture Smart Sensor
S-SMD-M005 - 10HS Soil Moisture Smart Sensor
Temperature
S-TMB-M002 - 12-Bit Temperature (2m cable) Smart Sensor
S-TMB-M006 - 12-Bit Temperature (6m cable) Smart Sensor
S-TMB-M017 - 12-Bit Temperature (17 m cable) Smart Sensor
Wind
S-WCF-M003 - Davis® Wind Speed and Direction Smart Sensor
S-WCB-M003 - R.M. Young Wind Monitor-AQ (model 05305) Adapter
S-WCC-M003 - R.M. Young Marine Wind Monitor (model 05106) Adapter
S-WCE-M003 - R.M. Young Wind Monitor for Wind/Alpine (model 05103) Adapter
S-WCG-M003 - Ultrasonic Wind Speed and Direction Smart Sensor
S-WDA-M003 - Wind Direction Smart Sensor
S-WSB-M003 - Wind Speed Smart Sensor
S-WSET-B - Wind Speed and Direction Set Smart Sensor
Step 5: Accessories
AC Power
Batteries
HRB-LI-6 - Replacement Lithium AA Batteries – 6 pack
Used with battery stations, RX2101 and RX2103.
HRB-NIMH-6 - Replacement Rechargeable Battery Pack for RX2102 and RX2104
Used with solar stations, RX2102 and RX2104.
Cable Adapters - Splitters
S-ADAPT-5 - 1-to-2 sensor communication adapter Adapter
S-ADAPT-6 - Smart Sensor Consolidator Box Adapter
Cable Management
CASE-PELICAN-1510 - Pelican Case
CABLE-USBMB - USB Cable
Compliance Certificates
COMPLIANCE CERT - Compliance Certification
Extension Cables
S-EXT-CASE2 - Weatherproof Extension Housing
S-EXT-M002 - Smart Sensor Extension Cable - 2m length Cable
S-EXT-M005 - Smart Sensor Extension Cable - 5m length Cable
S-EXT-M010 - Smart Sensor Extension Cable - 10m length Cable
S-EXT-M025 - Smart Sensor Extension Cable - 25m length Cable
Solar Power
SOLAR-15W - 15 Watt Solar Panel Power
SOLAR-5W - 5 Watt Solar Panel Power
Tripod Parts, Kits and Masts
M-TPA-KIT - HOBO Weather Station 3-Meter Tripod Kit
M-TPB-KIT - HOBO Weather Station 2-Meter Tripod Kit>
M-MPA - 3m mast
M-MPB - 1.5 meter mast
M-TPA - HWS 3m Tripod Tower with mast
M-TPB - HWS 2m Tripod Tower with mast
Operating Range | RX2103: -40° to 60°C (-40° to 140°F) RX2104: -20° to 60°C (-4° to 140°F) |
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Smart Sensor Connectors | 5 | |
Smart Sensor Network Cable Length | 100 m (328 ft) maximum | |
Smart Sensor Data Channels | Maximum of 15 (some smart sensors use more than one data channel; see sensor manual for details) | |
Logging Rate | 1 minute to 18 hours | |
Time Accuracy | ±8 seconds per month in 0° to 40°C (32°F to 104°F) range; ±30 seconds per month in -40° to 60°C (-40° to 140°F) range |
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Battery Type/Power Source | RX2103: 6 AA 1.5 V lithium batteries or AC power adapter (P-AC-1) RX2104: Integrated 1.7 watt solar panel and NiMH rechargeable battery pack; optional AC power adapter (P-AC-1) or external solar panel (SOLAR-xW) can be used in place of integrated solar panel |
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Battery Life |
RX2103 Battery Life: Battery life with daily connections:
RX2104 Battery Life: Typical 3–5 years when operated in the temperature range -20° to 40°C (-4° to 104°F); operation outside this range will reduce the battery service life. Maximum connection rates with built-in solar panel, in full sun:
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Memory | 16 MB, 1 million measurements, continuous logging | |
Alarm Notification Latency | Logging interval plus 2–4 minutes, typical | |
Enclosure Access | Hinged door secured by two latches with eyelets for use with user-supplied padlocks | |
LCD | LCD is visible from 0° to 50°C (32° to 122°F); the LCD may react slowly or go blank in temperatures outside this range | |
Materials | Outer enclosure: Polycarbonate/PBT blend with brass inserts; Interior: Polycarbonate/PBT; Gasket: Silicone foam; Cable channel: Santoprene™ TPE; U-Bolts (not included): Steel with zinc dichromate finish | |
Dimensions | 19.95 x 13.68 x 7.49 cm (7.85 x 5.39 x 2.95 in.) | |
Weight | 678 g (23.9 oz) | |
Mounting | Optional U-bolts are compatible with masts up to 4.14 cm (1.63 in.) mast diameter; can also be mounted with zip ties or mounted to a flat surface with screws | |
Environmental Rating | Weatherproof enclosure, NEMA 4X and IP66 (requires proper installation of cable channel system) | |
Wireless Radio | GSM/GPRS/EDGE: Quad band 850/900/1800/1900 MHz UMTS/HSPA+: Seven band 800/850/900/1800/1900/2100 MHz LTE: Twelve Band 700/800/850/900/1800/1900/2100/2600 MHz |
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Antenna | 4G LTE | |
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The CE Marking identifies this product as complying with all relevant directives in the European Union (EU) | |
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FCC ID QIPPLS62-W, IC ID:7830A-PLS62W | |
Water Level Sensor: | ||
Pressure (Absolute) And Water Level Measurements MX2001-01-S and MX2001-01-Ti-S: | ||
Operation Range: | 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 | |
Factory Calibrated Range | 69 to 207 kPa (10 to 30 psia), 0° to 40°C (32° to 104°F) | |
Burst Pressure | 310 kPa (45 psia) or 18 m (60 ft) depth | |
Water Level Accuracy* | Typical error: ±0.05% FS, 0.5 cm (0.015 ft) water Maximum error: ±0.1% FS, 1.0 cm (0.03 ft) water |
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Raw Pressure Accuracy** | ±0.3% FS, 0.62 kPa (0.09 psi) maximum error | |
Resolution | <0.02 kPa (0.003 psi), 0.21 cm (0.007 ft) water | |
Pressure Response Time (90%)*** | <1 second at a stable temperature | |
Pressure (Absolute) And Water Level Measurements MX2001-02-S: | ||
Operation Range | 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 | |
Factory Calibrated Range | 69 to 400 kPa (10 to 58 psia), 0° to 40°C (32° to 104°F) | |
Burst Pressure | 500 kPa (72.5 psia) or 40.8 m (134 ft) depth | |
Water Level Accuracy* | Typical error: ±0.05% FS, 1.5 cm (0.05 ft) water Maximum error: ±0.1% FS, 3.0 cm (0.01 ft) water |
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Raw Pressure Accuracy** | ±0.3% FS, 1.20 kPa (0.17 psi) maximum error | |
Resolution |
<0.04 kPa (0.006 psi), 0.41 cm (0.013 ft) water |
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Pressure Response Time (90%)*** | <1 second at a stable temperature | |
Pressure (Absolute) And Water Level Measurements MX2001-03-S: | ||
Operation Range | 0 to 850 kPa (0 to 123.3 psia); approximately 0 to 76.5 m (0 to 251 ft) of water depth at sea level, or 0 to 79.5 m (0 to 262 ft) of water at 3,000 m (10,000 ft) of altitude | |
Factory Calibrated Range | 69 to 850 kPa (10 to 123.3 psia), 0° to 40°C (32° to 104°F) | |
Burst Pressure | 1,200 kPa (174 psia) or 112 m (368 ft) depth | |
Water Level Accuracy* | Typical error: ±0.05% FS, 3.8 cm (0.125 ft) water Maximum error: ±0.1% FS, 7.6 cm (0.25 ft) water |
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Raw Pressure Accuracy** | ±0.3% FS, 2.55 kPa (0.37 psi) maximum error | |
Resolution |
<0.085 kPa (0.012 psi), 0.87 cm (0.028 ft) water |
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Pressure Response Time (90%)*** | <1 second at a stable temperature | |
Pressure (Absolute) And Water Level Measurements MX2001-04-S and MX2001-04-Ti-S: | ||
Operation Range |
0 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 |
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Factory Calibrated Range | 69 to 145 kPa (10 to 21 psia), 0° to 40°C (32° to 104°F) | |
Burst Pressure | 310 kPa (45 psia) or 18 m (60 ft) depth | |
Water Level Accuracy* | Typical error: ±0.075% FS, 0.3 cm (0.01 ft) water Maximum error: ±0.15% FS, 0.6 cm (0.02 ft) water |
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Raw Pressure Accuracy** | ±0.3% FS, 0.43 kPa (0.63 psi) maximum error | |
Resolution |
<0.014 kPa (0.002 psi), 0.14 cm (0.005 ft) water |
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Pressure Response Time (90%)*** |
<1 second at a stable temperature |
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Barometric Pressure (RX2103 and RX2104 station): | ||
Operation Range | 66 to 107 kPa (9.57 to 15.52 psia) | |
Temperature Calibrated Range | -20 to 50°C (-4 to 122°C) | |
Accuracy | ±0.2 kPa (±0.029 psi) over full temperature range at fixed pressure; maximum error ±0.5% FS | |
Water Level Accuracy* | Typical error: ±0.075% FS, 0.3 cm (0.01 ft) water Maximum error: ±0.15% FS, 0.6 cm (0.02 ft) water |
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Resolution | < 0.01 kPa (0.0015 psi) | |
Response Time | < 1 second at a stable temperature | |
Stability (Drift) | 0.1°C (0.18°F) per year | |
Temperature (Water Level Sensors MX2001-0x-S and MX2001-0x-Ti-S): | ||
Operation Range | -20° to 50°C (-4° to 122°F) | |
Accuracy | ±0.44°C from 0° to 50°C (±0.79°F from 32° to 122°F) | |
Resolution | 0.1°C at 25°C (0.18°F at 77°F) | |
Response Time (90%) | 5 minutes in water (typical) | |
Stability (Drift) | 0.1°C (0.18°F) per year | |
* Water Level Accuracy: With accurate reference water level measurement, known water density, and a stable temperature environment. System Water Level Accuracy equals the sum of the Barometric Water Level Accuracy plus the selected sensor Water Level Accuracy. ** Raw Pressure Accuracy: Absolute pressure sensor accuracy includes all sensor drift, temperature, and hysteresis-induced errors. *** Changes in Temperature: Allow 20 minutes in water to achieve full temperature compensation of the pressure sensor. There can be up to 0.5% of additional error due to rapid temperature changes. Measurement accuracy also depends on temperature response time. |
MX2001-04-S - Freshwater Stainless Steel Level Sensor, 4m (13’)
MX2001-01-S - Freshwater Stainless Steel Level Sensor, 9m (30’)
MX2001-02-S - Freshwater Stainless Steel Level Sensor, 30m (100’)
MX2001-03-S - Freshwater Stainless Steel Level Sensor, 76m (250’)
MX2001-04-Ti-S - Saltwater Titanium Level Sensor, 4m (13’), Ti
MX2001-01-Ti-S - Saltwater Titanium Level Sensor, 9m (30’), Ti
Light Intensity
S-LIA-M003 - Photosynthetic Light (PAR) Smart Sensor
S-LIB-M003 - S-LIB-M003Solar Radiation (Silicon Pyranometer) Smart Sensor
Rainfall
S-RGA-M002 - 0.01" Rain Gauge (2m cable) Smart Sensor
S-RGB-M002 - 0.2 mm Rainfall (2m cable) Smart Sensor
S-RGE-M002 - Davis® 0.01" Rain Gauge Smart Sensor
S-RGF-M002 - Davis® 0.2 mm Rain Gauge Smart Sensor
Soil Moisture
S-SMC-M005 - EC5 Soil Moisture Smart Sensor
S-SMD-M005 - 10HS Soil Moisture Smart Sensor
CASE-PELICAN-1510 - Pelican Case