Testo 174H : Temperature & Humidity Data Logger

The testo 174H is an ideal logger for the continuous monitoring of temperatures and humidity. The 174H has clear indications of when humidity and temperature thresholds have been exceeded..

  • High accuracy NTC thermistor sensor for reliable measurement data of temperature and humidity
  • Easy to read large display that shows current reading and exceeded measurement limits
  • IP65 proection class
  • HACCP compliant

Please note: The testo 174H temperature and humidity data logger requires an interface. One interface can be used for multiple instruments.

Scope of delivery

testo 174H temperature and RH measurement logger
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Description
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Technical data

Temperature – NTC

Measuring range
-4° to 158 °F / -20 to +70 °C
Accuracy
±0.9 °F (-4° to 158 °F) / ±0.5 °C (-20 to +70 °C)
Resolution
0.1 °F / 0.1 °C

Humidity – Capacitive

Measuring range
0 to 100 %rH*
Accuracy
±3 %rH (2 to 98 %rH) at 77 °F / ±3 %RH (2 to +98 %RH) at +25 °C
±0.03 %rF/K ±1 Digit
Resolution
0.1 %rH
* Not for condensing atmospheres.

General technical data

Weight
1.20 oz. / 34 g
Dimensions
2 x 1 x 0.7 in. / 60 x 38 x 18.5 mm
Operating temperature
-4° to 158 °F / -20 to +70 °C
Housing
Plastic
Protection class
IP20
Channels
2 internal
Product colour
Black
Standards
2011/65/EU; EU-guideline 2014/30/EU
Measuring rate
1 min – 24 h
Battery type
2 x 3V button cell (CR 2032)
Battery life
1 year (15 min measuring cycle, +25 °C)
Memory
16,000 measuring values
Storage temperature
-40° to 158 °F / -40 to +70 °C

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