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HOBO^® U12 Indoor Data Logger Family

12-bit loggers with USB interface

New HOBO U12 Family data loggers offer reliability and convenient monitoring for applications that require higher accuracy, better resolution, more memory or USB connectivity for fast data readout to your PC. Operation of U12 Family data loggers requires Onset’s easy-to-use GreenLine^® software (Windows) or HOBOware™ software (Mac) software for logger launch, offload, and data viewing.

HOBO U12 Temp/RH/Light/External Data Logger

U12-001
Temp

U12-006- NEW 4 External Channels
	•AC Current
	•4-20mA
	•DC Voltage
	•Temp
	•CO2

U12-011
Temp/RH

U12-012 Temp/RH/ Light/ External Channels
	•AC Current
	•4-20mA
	•DC Voltage
	•Temp
	•CO2

U12-013 Temp/RH 2 External Channels
	•AC Current
	•4-20mA
	•DC Voltage
	•Temp
	•CO2

Required Software

Features and specifications

12-bit resolution
43,000 12-bit measurements
Complete download in 30 seconds via direct USB interface
Programmable start time/date or push-button start
Programmable sampling rate (1 second to 18 hours)
Numerous event types (button push/release, host PC connection, low battery), stored to data file asynchronously during logging
Battery level indication at launch
Battery level can be recorded as a separate channel
Blinking LED confirms operation
1-year battery life (typical) – user-replaceable CR-2032 lithium battery
Non-volatile memory retains data even if battery fails
NIST-traceable temperature accuracy certification available
Operating Range: -20° to 70°C (-4° to 158°F), 5% to 95% RH non-condensing, non-fogging
Size/Weight: 5.8 x 7.4 x 2.2 cm (2.3 x 2.9 x 0.85")/approx. 46 gms (1.6 oz.)

HOBO U12 Temperature Data Logger
	Part # U12-001
	Single channel USB temperature logger with 12-bit resolution.
Key Specifications
•	Measurement Range: -20° to 70°C (-4° to 158°F)
•	Accuracy: ±0.35°C from 0° to 50°C (±0.63°F from 32° to 122°F)

HOBO U12 4 External Channel Data Logger
	Part # U12-006
	4 external input channels accept a wide range of external sensors and cables for temperature, CO2, AC Current, 4-20mA, and DC Voltage. (See External Sensor) Requires GreenLine version 1.1.
Key Specifications
	External Input Channel Measurement Range (See External Sensor): 0 to 2.5 DC Volts
	Accuracy: ± 2mV ± 2.5% of absolute reading

HOBO U12 Temp/RH Data Logger
	Part # U12-011
	Two-channel USB temperature/relative humidity logger with high-accuracy internal sensors, direct USB interface and 12-bit resolution.
Key Specifications
•	Temperature Measurement Range: -20° to 70°C (-4° to 158°F)
•	Accuracy: ± 0.35°C from 0° to 50°C (± 0.63°F from 32° to 122°F)
•	Relative Humidity Measurement Range: 5% to 95% RH
•	Accuracy: ± 2.5% RH from 10% to 90% typical

HOBO U12 Temp/RH/Light/External Channel Data Logger
	Part # U12-012
	Four-channel 12-bit USB logger provides high-accuracy temperature, relative humidity and relative indoor light level measurements. Versatile external channel accepts a wide range of external sensors and input cables for temperature, CO2, AC Current, 4-20mA, and DC Voltage. (See External Sensor).
Key Specifications
•	Temperature Measurement Range (internal sensor): -20° to 70°C (-4° to 158°F)
•	Accuracy: ± 0.35°C from 0° to 50°C (± 0.63°F from 32° to 122°F)
•	Relative Humidity Measurement Range (internal sensor): 5% to 95% RH
•	Accuracy: ± 2.5% RH from 10% to 90% typical
•	Light Intensity Measurement Range (internal sensor): 1 to 3000 footcandles (lumens/ft2) typical
•	External Input Channel Measurement Range (See External Sensor)
•	Accuracy: ± 2mV ± 2.5% of absolute reading

HOBO U12 Temp/RH/2 External Channel Data Logger
	Part # U12-013
	Versatile four-channel 12-bit USB logger has high-accuracy temperature and relative humidity sensors. Two external channels accept a wide range of external sensors and input cables for temperature, CO2, AC Current, 4-20mA, and DC Voltage. (See External Sensor).
Key Specifications
•	Temperature Measurement Range (internal sensor): -20° to 70°C (-4° to 158°F)
•	Accuracy: ± 0.35°C from 0° to 50°C (± 0.63°F from 32° to 122°F)
•	Relative Humidity Measurement Range (internal sensor): 5% to 95% RH
•	Accuracy: ± 2.5% RH from 10% to 90% typical
•	External Input Channel Measurement Range (See External Sensor): 0 to 2.5 DC Volts
•	Accuracy: ± 2mV ± 2.5% of absolute reading

Telaire 7001 CO₂ Sensor (requires CABLE-CO2 to connect to H8 and U12 loggers)