HOBO Temperature/Relative Humidity/Light/External Data Logger
Description
Overview
Measure temperature, relative
humidity, light intensity, and more with the HOBO U12-012. With 12-bit
resolution measurements, this data logger gathers a range of recorded
data and stores 43,000 measurements.
Feature
- 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
Spesification
The country of origin for this
product is the United States. To see the full specifications for this
product, please see our product manual found under the documentation tab
if available.
Measurement Range
Temperature: -20° to 70°C (-4° to 158°F)
RH: 5% to 95% RH2
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)
Temperature: -20° to 70°C (-4° to 158°F)
RH: 5% to 95% RH2
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%, 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
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%, 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: 0.03% RH
Temperature: 0.03°C at 25°C (0.05°F at 77°F), see Plot A in manual
RH: 0.03% 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%
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%
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
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)
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)
