Product Details

Temperature - NTC	Measuring range -4° to 131 °F / -20 to +55 °C
	Accuracy ±0.7 °F (-4° to 131 °F) ±1 Digit / ±0.4 °C (-20 to +55 °C) ±1 Digit
	Resolution 0.1 °F / 0.1 °C

Humidity - Capacitive	Measuring range 0 to 100 %rH*
	Accuracy ±2 %rH (2 to 98 %rH at 77.0 °F / ±2 %RH (2 to 98 %RH) at +25 °C < ±1 %rH / year drift at +77 °F / < ±1 %RH / year drift at +25 °C ±0.03 %rF/K ±1 Digit
	Resolution 0.1 %rH
* Not for condensing atmospheres.

General technical data	Weight 4.59 oz. / 130 g
	Dimensions 6 x 2 x 1 in. / 149 x 53 x 27 mm
	Operating temperature -4° to 131 °F / -20 to +55 °C
	Housing Plastic
	Protection class IP54
	Channels 2 internal
	Product colour Black
	Life-time sensor Long-term drift of the sensor <1% RH / year (ambient temperature + 25 ° C)
	Standards EU-guideline 2014/30/EU; 2011/65/EU
	Measuring rate 10 s - 24 h
	Battery type 3 x AIMn type AAA or Energizer
	Battery life 3 years at 15 min. meas. rate, +25 °C
	Interface mini usb, SD card slot
	Memory 1,000,000 measuring values
	Storage temperature -4° to 131 °F / -20 to +55 °C

New Original Testo 175H1 Temperature and Humidity Recorder for Food and Medicine with High Accuracy and Long Battery Life