HOBO 4-Channel External Data Logger

Data Loggers

HOBO 4-Channel External Data Logger

  • Vendor:Onset

Availability: In Stock
Qty Price
Buy 1 $373.00 ea
Buy 10 $354.35 ea


Employ multiple energy and environmental sensors, ranging from amps to temperature, with the HOBO U12-008 data logger. Its weatherproof enclosure allows the U12-008 to be flexible to deploy inside or outdoors. The HOBO U12-008 memory stores 43,000 measurements of 12-bit resolution readings.

Highlighted Features

  • Weatherproof enclosure
  • 12-bit resolution provides high accuracy
  • Programmable and push-button start
  • Direct USB interface for fast data offload
  • Compatible with Onsets HOBO U-Shuttle for convenient data transport
  • Compatible with HOBOware and HOBOware Pro for logger setup, graphing and analysis

In what environment does this data logger operate?

This data logger operates in indoor and outdoor environments.

What measurements does this data logger support?

The U12-008 data logger supports the following measurements: 4-20mA, AC Current, AC Voltage, Air Velocity, Carbon Dioxide, Compressed Air Flow, DC Current, DC Voltage, Gauge Pressure, Kilowatts (kW), Temperature and Volatile Organic Comp.


Analog channels: 0 to 2.5 Vdc (w/CABLE-2.5-STEREO); 0 to 5 Vdc (w/CABLE-ADAP5);
0 to 10 Vdc (w/ CABLE-ADAP10); 0 to 24 Vdc (w/CABLE-4-20MA)
Accuracy (logger only): ± 2 mV ± 2.5% of absolute reading
± 2 mV ± 1% of reading for data logger-powered sensors
Resolution: 0.6mV
Sample Rate: 1 second to 18 hours, user selectable
Time accuracy: ± 1 minute per month at 25°C (77°F), see Plot A in manual
Operating range: -20 to 70°C (-4° to 158°F)
Weatherproof case: tested to NEMA 6 standard
Dimensions: 3.5cm x 5.7cm x 1.9cm (1.38 in. x 2.25 in. x 0.75 in.)
Operating temperature
Logging: -20° to 70°C (-4° to 158°F)
Launch/readout: 0° to 50°C (32° to 122°F), per USB specification
Battery life: 1 year typical use. The logger requires one 3-Volt CR-2032 lithium battery.
Memory: 64K bytes (43,000 12-bit measurements)
Weight: 200 g (7 oz)
Dimensions: 140 x 137 x 32 mm (5.5 x 5.38 x 1.25 inches)
The CE Marking identifies this product as complying with all relevant directives in the European Union (EU).
Graphing & Analysis
  • BHW-PRO HOBOware Pro CD or USB Drive (USB Cable Included) Software 
  • BHW-PRO-DLD HOBOware Pro - Mac/Win (Download Only) Software 
4-20 mA AC Current
  • CTV-A 2-20 Amp split-core AC current Sensor 
  • CTV-B 5-50 Amp split-core AC current Sensor 
  • CTV-C 10-100 Amp split-core AC current Sensor 
  • CTV-D 20-200 Amp split-core AC current Sensor 
  • CTV-E 60 - 600 Amp split-core AC current Sensor
AC Voltage
  • T-CON-ACT-150 ConLab 0-150 Volt AC Transmitter Sensor 
  • T-CON-ACT-300 ConLab 0-300 Volt AC Transmitter Sensor
Air Velocity
  • T-DCI-F900-L-O Air Velocity (.15 to 5 m/s) (30 to 985 fpm) Sensor 
  • T-DCI-F900-L-P Air Velocity (0.15 to 10 m/s) (30 to 1969 fpm) Sensor 
  • T-DCI-F900-S-O Air Velocity (0.15 to 5 m/s) (30 to 985 fpm) Sensor 
  • T-DCI-F900-S-P Air Velocity Sensor (0.15 to 10 m/s) (30 to 1969 fpm) Sensor
Carbon Dioxide Compressed Air Flow DC Amperage DC Voltage (0-2.5v, 5v, 10v)
  • CABLE-2.5-STEREO 0 to 2.5 VoltsDC Voltage Input Sensor 
  • CABLE-ADAP10 0 to 10 VoltsDC Voltage Input Sensor 
  • CABLE-ADAP24 0 to 24 VoltsDC Voltage Input Sensor 
  • CABLE-ADAP5 0 to 5 VoltsDC Voltage Input Sensor
Differential Pressure
  • T-VER-PXU-L Differential Air Pressure Transducer Sensor 
  • T-VER-PXU-X Differential Air Pressure Transducer Sensor
Gauge Pressure
  • T-ASH-G2-100 Ashcroft (100-psig) Gauge Pressure Sensor 
  • T-ASH-G2-200 Ashcroft (200-psig) Gauge Pressure Sensor 
  • T-ASH-G2-500 Ashcroft (500-psig) Gauge Pressure Sensor
Power Temperature
  • TMC1-HD Air/Water/Soil Temperature (1' cable) Sensor 
  • TMC20-HD Air/Water/Soil Temperature (20' cable) Sensor 
  • TMC50-HD Air/Water/Soil Temperature (50' cable) Sensor 
  • TMC6-HC Stainless Steel Temperature Probe (6' cable) Sensor 
  • TMC6-HD Air/Water/Soil Temperature (6' cable) Sensor 
  • TMC6-HET emperature (6') Sensor
Volatile Organic Compound
  • T-ION-TVOC Volatile Organic Compound (VOC) Sensor
Communication Cables
Data Offload - Base Stations - Shuttles - Couplers MAINTENANCE Batteries Desiccants
  • DESIC-PACK Desiccant pack for Outdoor/Industrial data loggers (Qty 2) Replacement
Dome Plugs
  • 85-DOMEPLUG Dome Plugs to Access Serial Comm Port Replacement
  • 85-ORING-14 Replacement O-ring for 85-DOMEPLUG Replacement
Replacement Parts
  • H8X4-BK Replacement parts kit for Outdoor/Industrial data loggers Replacement
Carrying Case
Compliance Certificates
  • COMPLIANCE CERT Compliance Certification
NIST Setup & Certifications
  • NIST-RH Initial Purchase RH NIST Calibration Service Certification 
  • NIST-SETUP Setup Charge for NIST Traceable Certification
  • NIST-TEMP-POINT NIST Temperature point Certification