Monitor air temperature and relative humidity levels at all times with Testo’s 174H Mini Temperature and Humidity Data Logger. The 174H is designed for a long span of continuous use without sacrificing high levels of accuracy over time. Now, the free software download makes analyzing readings virtually effortless for even more efficiency, making Testo’s 174H a complete value.
Specifications
Temperature - NTC
Technical data
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
Technical data
Measuring range
0 to 100 %rH*
Accuracy
±3 %rH (2 to +98 %rH) ±0.03 %rF/K
Resolution
0.1 %rH
* Not for condensing atmospheres. For continuous use in high humidity (>80 %RH at ≤30 °C for >12 h, >60 %RH at >30 °C for >12 h), please contact us via our website.
General technical data
Technical data
Protection class
IP20
Channels
2
Warranty
2 years
Measuring rate
1 min - 24 h
Battery type
2 lithium batteries (CR2032)
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
Dimensions
2 x 2 x 0.7 in. / 60 x 38 x 18.5 mm
Operating temperature
-4° to 158 °F / -20 to +70 °C
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