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U12 Temp/RH/Light/External Data Logger

Onset HOBO Four Channel USB Temperature/Humidity/Light/External Input Data Logger with 12-bit resolution

HOBO U12 Temperature, RH, Light and External Inout Data LoggerThe temperature, RH, light with external input logger is a four-channel electronic recording device that provides temperature, relative humidity, relative indoor light level measurements and accepts one external input. The external channel accepts a wide range of external sensors and input cables for temperature, CO2, AC Current, 4-20mA, and DC Voltage. The data logger features 12 bit resolution, high accuracy, data storage of 43,000 samples and 1 year user-replaceable battery.

Required with the Data Logger
>> HOBOware™ Software Kit

NOTE: NIST Calibration is available.
Large Quantity Discounts Are Available!

Features   Specifications   External Sensor

Description Part Number Qty 1-9 Qty 10+  
HOBO U12 Temp/RH/Light/External Data Logger U12-012
$125.00 $116.00
Required Software Kits - 1 Required (Compare HOBOWare Versions)
HOBOware Lite Software Kit for Windows/Mac (includes Software and Cable) BHW-LITE
$39.00 call
HOBOware Pro Software Kit for Windows (includes Software and Cable) BHW-PC
$99.00 $92.00
HOBOware Pro Software Kit for Mac (includes Software and Cable) BHW-MAC
$99.00 $92.00
Standard NIST Calibration Service
Standard NIST Temperature Calibration (1 Point) CAL-NIST-TEMP $40.00Temp:
Optional Accessories
Real-Time Alarm Software for notifications (email,pager,cell,text) - Requires HOBOware Pro software BHW-T-ALRM
$59.00 call
Onset U-Shuttle Data Transporter (Requires HOBOware Pro Software) U-DT-1
$249.00 call
Extra/Replacement Batteries (pack of 5) - CR2032 lithium batteries HRB-Temp-5
$8.00 $7.00
Keyspan USB Server for connecting USB-based Devices ( Data Logger ) over a LAN US-4A
$129.00 call
Custom USB Interface Cable Cable-USBMB-HS
$9.00 $8.00
Glacier Clear Xtreme Protective Case (3.93" x 2.4" x 0.94") T1000.1
$9.00 call
Blue Xtreme Protective Case (3.93" x 2.4" x 0.94") T1000.4
$9.00 call

Temperature, RH and Light Logger Features

  • Store up to 43,000 12-bit Samples/Readings
  • USB Interface to PC for Fast Reliable Download of Data
  • Programmable Start Time/Date or Push-Button Start
  • Sampling Rate of 1 Second to 18 Hours (User Selectable)
  • Numerous Event Types (button push/release, host PC connection, low battery), Stored to Data File Asynchronously During Logging
  • 1-Year User Replaceable Battery (typical)
  • Non-Volatile Memory Retains Data Even if Battery Fails
  • Requires HOBOware Software and USB Kit (PC and MAC Versions)

Temperature, RH and Light Logger Specifications

Data Storage Capacity 43,000 12-bit Samples/Readings
Sampling Rate 1 Second to 18 Hours
Measurement Range Temperature: -20°C to 70°C (-4°C to 158°F)
Humidity: 5% to 95% RH
Light Intensity: 1 to 3000 footcandles (lumens/ft2)*
External Input Channel: 0 to 2.5 Volts DC
Accuracy Temperature: ±0.35°C from 0°C to 50°C
Humidity: ±2.5% RH from 10% to 90% (10°C to 50°C) **
Light Intensity: Indoor Measurement of Relative Light Levels
External Inputs: ±2 mV, ±2.5% of Absolute Reading
Resolution Temperature: 0.03°C at 25°C (0.05°F at 77°F)
Humidity: 0.03% RH
Drift Temperature: 0.01°C/year (0.02°F/year)
Humidity: <1% RH per year; RH Hystersis 1%
Response Time
(airflow: 1m/s)
Temperature: 6 Minutes, typical to 90%
Humidity: 1 Minute, 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 (16 oz)
Dimensions 58mm x 74mm x 22mm (2.3" x 2.9" x 0.9")
NOTES:
* Maximum Values Varies from 1500 to 4500 footcandles (lumens/ft2)
** Conditions Above 80% RH and 60°C(140°F) may cause additional error

External Input Channel

Accepts sensors which can also be used with the H8 Loggers

  • Wide range of temperature sensors
  • Split Core CTs for AC current
  • 4-20mA input cable for use with third-party sensors
  • 0-2.5V DC cable for use with third-party sensors
  • Carbon Dioxide

 

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