Part Number - U12-012

HOBO Temperature/Relative Humidity/Light/External Data Logger

Discontinued

$140.00 USD
Measures temperature, relative humidity, light intensity, and more; 12-bit resolution, stores 43,000 measurements.

Important Information

Requires HOBOware software and a USB cable. (Note: A USB cable is included w/HOBOware Pro CD or USB software purchase). See compatible items below.

Compatible with

Overview

Measures temperature, relative humidity, light intensity, and more. With 12-bit resolution measurements, this logger collects a range of recorded data and stores 43,000 measurements.

Features

  • 12-bit resolution provides high accuracy
  • Large memory for long-term deployments or fast sampling
  • Programmable and push button start
  • Direct USB interface for fast data offload
  • Compatible with Onset’s HOBO U-Shuttle for convenient data transport
  • Compatible with HOBOware and HOBOware Pro for logger setup, graphing, and analysis

Specifications

Measurement Range
Temperature: -20° to 70°C (-4° to 158°F)
RH: 5% to 95% RH
Light intensity: 1 to 3000 footcandles (lumens/ft2) typical; maximum value varies from 1500 to 4500 footcandles (lumens/ft2)
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); 4-20 mA (w/CABLE-4-20MA)

Accuracy
Temperature: ± 0.35°C from 0° to 50°C (± 0.63°F from 32° to 122°F), see Plot A in manual
RH: ± 2.5% from 10% to 90% RH typical, to a maximum of ±3.5% including hysteresis at 25°C (77°F); below 10% and above 90% ±5% typical, see Plot B in manual
Light intensity: Designed for indoor measurement of relative light levels, see Plot D in manual for light wavelength response
External input channel (see sensor manual): ± 2 mV ± 2.5% of absolute reading

Resolution
Temperature: 0.03°C at 25°C (0.05°F at 77°F), see Plot A in manual
RH: 0.05% RH

Sample rate: 1 second to 18 hours, user selectable

Drift
Temperature: 0.1°C/year (0.2°F/year)
RH: <1% per year typical; RH hysteresis 1%

Response Time in Airflow of 1 m/s (2.2 mph)
Temperature: 6 minutes, typical to 90%
RH: 1 minute, typical to 90%

Time accuracy: ± 1 minute per month at 25°C (77°F), see Plot C in manual

Operating Temperature
Logging: -20° to 70°C (-4° to 158°F); 0 to 95% RH (non-condensing)
Launch/readout: 0° to 50°C (32° to 122°F), per USB specification

Battery life: 1 year typical use
Memory: 64K bytes (43,000 12-bit measurements)
Weight: 46 g (1.6 oz)
Dimensions: 58 x 74 x 22 mm (2.3 x 2.9 x 0.9 inches)

 

 

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CE

The CE Marking identifies this product as complying with all relevant directives in the European Union (EU).

 

Compatible items

Compliance Certificates

COMPLIANCE CERT
$30.00 USD

NIST Setup & Certifications

NIST-RH-ONEPOINT
$116.00 USD
NIST-RH-THREEPOINT
$182.00 USD
NIST-TEMP-POINT
$51.00 USD

Protective Enclosures

CASE-VENTED-LOCK
$47.00 USD

Communication Cables

CABLE-USBMB
$18.00 USD

Batteries

HRB-TEMP-1
$13.00 USD

Graphing & Analysis

BHW-PRO-DLD
$75.00 USD
BHW-PRO-USB
$99.00 USD

4-20 mA

CABLE-4-20MA
$40.00 USD

AC Current

CTV-A
$135.00 USD
CTV-B
$135.00 USD
CTV-C
$135.00 USD
CTV-D
$169.00 USD
CTV-E
$169.00 USD

AC Voltage

T-CON-ACT-150
$169.00 USD
T-CON-ACT-300
$169.00 USD
CABLE-4-20MA
$40.00 USD

Air Velocity

T-DCI-F300-1A3
$425.00 USD
T-DCI-F300-1B3
$425.00 USD
T-DCI-F300-1C3
$425.00 USD
T-DCI-F350-W5A3
$479.00 USD
T-DCI-F350-W5B3
$479.00 USD
T-DCI-F350-W5C3
$479.00 USD
AC-SENS-1
$35.00 USD
CABLE-2.5-STEREO
$20.00 USD
CABLE-ADAP5
$45.00 USD
CABLE-ADAP10
$47.00 USD
CABLE-ADAP24
$47.00 USD

DC Amperage

T-VER-971BP-200
$289.00 USD
AC-SENS-1
$35.00 USD
CABLE-4-20MA
$40.00 USD

DC Voltage

CABLE-2.5-STEREO
$20.00 USD
CABLE-ADAP5
$45.00 USD
CABLE-ADAP10
$47.00 USD
CABLE-ADAP24
$47.00 USD

Differential Pressure

T-VER-PX3UL
$279.00 USD
AC-SENS-1
$35.00 USD
CABLE-2.5-STEREO
$20.00 USD
CABLE-ADAP5
$45.00 USD
CABLE-ADAP10
$47.00 USD
CABLE-ADAP24
$47.00 USD

Gauge Pressure

T-ASH-G2-100
$269.00 USD
T-ASH-G2-200
$269.00 USD
T-ASH-G2-500
$269.00 USD
AC-SENS-1
$35.00 USD
CABLE-2.5-STEREO
$20.00 USD
CABLE-ADAP5
$45.00 USD
CABLE-ADAP10
$47.00 USD
CABLE-ADAP24
$47.00 USD

Temperature

TMC1-HD
$45.00 USD
TMC6-HD
$50.00 USD
TMC20-HD
$65.00 USD
TMC50-HD
$80.00 USD
TMC6-HE
$69.00 USD

What's in the box

  • HOBO U12-012 Temp/RH/Light External Data Logger
  • Mounting kit: magnet, hook & loop tape, tie-wrap mount, tie wrap, and two screws

Documents

HOBO U12 Temp/RH/Light External Data Logger (U12-012) User's Manual (CE compliant)

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Quick Start for the HOBO® U-Series Data Logger

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