Wireless handle for attachable plug-in probe heads, incl. T/C adapter, approved for USA & Canada

The testo 635-1 temperature and humidity measuring instrument enables you to measure the temperature, air humidity, and dew point &ndash; in compressed air as well. State of the art technology and a large selection of probes, which are available optionally, allow for a wide variety of measuring possibilities.

The testo 635-2 temperature and moisture meter measures the temperature and moisture of different types of materials, surfaces, and environments, with a wide range of optional sensors.

Use the compact professional humidity module to carry out wireless humidity/temperature measurement with the appropriate radio handle and measuring instrument (both available to order separately).

The humidity module can be attached to various Testo radio handles. It enables a high level of accuracy thanks to the precise humidity sensor.<br />
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Wireless handle (0554 0189) and wireless module (0554 0188) are required to use a radio probe, and these can be ordered optionally.

Compact professional humidity module

Humidity probe head

Industrial Manufacturing

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Temperature - NTC	Measuring range -4.0° to 158.0 °F / -20 to +70 °C
	Accuracy ±0.5 °F / ±0.3 °C
	Resolution 32.2 °F / 0.1 °C

Humidity - Capacitive	Measuring range 0 to +100 %rH
	Accuracy ±2 %rH (+2 to +98 %rH)
	Resolution 0.1 %rH

Humidity probe head

Humidity probe head

Temperature - NTC

Temperature - NTC

Humidity - Capacitive

Humidity - Capacitive