2 Channel Temperature Data Logger
Onset HOBO Temperature Data Logger with 1 External Sensor
HOBO Pro V2 2 Channel Temperature Data logger is a weatherproof logging device with two (2) temperature sensors, 1 internal temperature sensor and the other an external soil/water temperature sensor with 6 ft cable.
Required With Each Pro V2 Data Logger HOBO Waterproof Shuttle or Optic USB Base Station HOBOWare Software Kit
NOTE: NIST Calibration is available.
Features Specifications Documentation Software Tutorials
Description Part Number Qty 1-9 Qty 10+
HOBO Pro V2 2 Channel Temp Data Logger
U23-004
$139.00
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Required Communications - 1 Required
Optic USB Base Station (includes Coupler)
BASE-U-4
$115.00
$107.00
Waterproof Shuttle Data Transporter/Optic Base Station w/ Couplers - Requires HOBOWare Pro Software
U-DTW-1
$230.00
$214.00
Required Software Kits - 1 Required (Compare HOBOWare Versions )
HOBOware Lite Software Kit for Windows/Mac (includes Software and Cable)
BHW-LITE-CD
$45.00
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HOBOware Pro Software Kit for Windows/Mac (includes Software and Cable)
BHW-PRO-CD
$99.00
$92.00
Standard NIST Calibration Service
Optional Logger Accessories
Extra/Replacement 3.6V 1/2 AA Lithium Battery
HP-B
$12.00
$11.00
Solar Radiation Shield
RS3
$59.00
$55.00
Coupler for U23 Pro v2 Data Logger
COUPLER2-E
$11.00
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Clamp to attach Radiation Shield to U23 Data Logger
U23-RS-CLAMPKIT
$5.00
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Real-Time Alarm Software for notifications (email,pager,cell,text) - Included with HOBOware Pro software
BHW-T-ALRM
$55.00
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Custom USB Interface Cable
CABLE-USBMB-HS
$9.00
$8.00
Onset Protective End Cap for U23 Communication LED's
85-ENDCAP-U23
$3.00
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Logger Features
Weatherproof housing for use in outdoor or condensing environments
Up to 8 user-defined logging intervals
High accuracy external temperature and RH Sensors
Replaceable RH Sensor provides fast response and superior recovery from condensing conditions
Optic USB Interface for fast and reliable download
Logger Specifications
Data Storage Capacity 42,000 Readings
Sampling Rate 1 Second to 18 Hours (Fixed rate or multiple logging intervals, with up to 8 user-defined logging intervals and durations)
Time Accuracy 1 min/month at 25°C (77°F)
Battery Life 3 Years dependant on sampling rate and environment
Battery 1/2 AA 3.6 Volt Lithium Battery, User Replaceable
Standards Compliance CE
Weight 102 grams (2.7 oz)
Dimensions 100.2mm x 30.8mm (4.0" x 1.5")
Internal Temperature Sensor
Measurement Range -40°C to 70°C (-40° to 158°F)
Accuracy ±0.2°C over 0 to 50°C (±0.36°F over 32°F to 122°F)
Resolution (12-bit) 0.02°C at 25°C (0.04°F at 77°F)
Response Time 40 Minutes ( to 90% in airflow of 1 m/sec)
External Temperature Sensor
Measurement Range -40°C to 100°C (-40° to 212 °F)
Accuracy ±0.2°C over 0 to 50°C (±0.36°F over 32°F to 122°F)
Resolution (12-bit) 0.02°C at 25°C (0.04°F at 77°F)
Response Time 3 Minutes ( to 90% in airflow of 1 m/sec)
Sensor Diameter 1.0 cm (.38 inches)
Sensor Cable Length 1.8 Meters (6 feet)
Optic USB Base Station offloads full logger in less than 30 seconds
Optical interface to logger eliminates unreliable connectors
Easy USB connection to PC
U23 Pro V2 Series Data Sheet Using Pro V2 Logger with Rain Shield
HOBOWare Software Video Tutorials
How to Launch a HOBO Data Logger using HOBOware Pro Software
How to Readout a HOBO Data Logger using HOBOware Pro
Check Out More HOBOWare Software Tutorials.
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All prices are in U.S. Dollars.
The 
Optic USB Base Station
Can be used as an Optic USB based station for 