HOBO U12 Series of Data Loggers

The 1 channel temperature logger has a high-accuracy internal sensor measuring and logging ambient temperature readings. The logger can store up to 43,000 samples, programmable start time, non-volatile memory, 1 year user-replaceable battery and a sampling rate of 1 second to 18 hours.

Required with the Data Logger

>> HOBOware™ Software Kit

NOTE: NIST Calibration is available.

Large Quantity Discounts Are Available!

USB Temperature Logger Features

  1. Store up to 43,000 12-bit Samples/Readings
  2. USB Connection to PC for Data Download
  3. Programmable Start Time/Date or Push-Button Start
  4. User-Selectable Sampling Rate of 1 Second to 18 Hours
  5. Numerous Event Types (Button Push/Release, Host PC Connection, Low Battery) Optionally Stored to Data File Asynchronously During Logging
  6. Blinking LED confirms Operation
  7. Non-volatile Memory Retains Data Even If Battery Fails
  8. Requires HOBOware Software and USB Kit (PC and MAC Versions)

USB Temperature Logger Specifications

Data Storage Capacity 43,000 12-bit Samples/Readings
Sampling Rate 1 Second to 18 Hours
Measurement Range -20°C to 70°C (-4°F to 158°F)
Accuracy ±0.35°C from 0°C to 50°C (±0.63°F from 32°F to 122°F)
Resolution 0.03C at 25C (0.05F at 77F)
Drift 0.1C/Year (0.2F/year)
Response Time Airflow of 1 m/s: 6 Minutes, Typical to 90%
Time Accuracy ±1 Minute per Month at 25°C (77°F)
Operating Temperature Logging: -20°C to 70°C (-4°F to 158°F)
Launch/Readout: 0°C to 50°C (32°F to 122°F)
Battery Life Typically 1 Year
Battery 3-Volt CR-2032 Lithium Battery (User Replaceable)
Standards Compliance CE
Weight 46 g (1.6 oz)
Dimensions 58mm x 74mm x 22mm (2.3" x 2.9" x 0.9")


Description Part Number
HOBO U12 Temperature Data Logger U12-001
Required Software Kits - 1 Required (Compare HOBOWare Versions)
HOBOware Lite Software Kit for Windows/Mac (includes Software and Cable) BHW-LITE-CD
HOBOware Pro Software Kit for Windows/Mac (includes Software and Cable) BHW-PRO-CD
Standard NIST Calibration Service
Standard NIST Temperature Calibration (1 Point) Note: 3 to 5 Day Lead Time for All Calibration Orders CAL-NIST-TEMP
Optional Accessories
Onset U-Shuttle Data Transporter (Requires HOBOware Pro Software) U-DT-1
Extra/Replacement Batteries (pack of 5) - CR2032 Lithium Batteries HRB-TEMP-5
Custom USB Interface Cable CABLE-USBMB-HS
Glacier Clear Xtreme Protective Case (3.93" x 2.4" x 0.94") T1000.1
Blue Xtreme Protective Case (3.93" x 2.4" x 0.94") T1000.4
Locking Protective Wall Cover 3 7/8" x 3 1/2" x 2 1/2" BTG-EK