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.

For measurements in storage, refrigeration and work rooms, in ventilation ducts and also on refrigeration systems and heat pumps: use the humidity/temperature probe (with the compatible measuring instrument) to measure relative humidity and air temperature. The readings are transmitted directly to your measuring instrument via Bluetooth, making your measurements particularly convenient.

The ideal probe for measuring the humidity and temperature of the air in storage, refrigerated and work areas, as well as in air conditioning/ventilation ducts. Also suitable for long-term measurements.

Kit for carrying out measurements in storage, refrigeration and work rooms, in ventilation ducts and also on refrigeration systems and heat pumps. Keep the testo 440 air velocity and IAQ measuring instrument and the humidity/temperature probe with Bluetooth<sup>&reg;</sup> safely stowed away in the case. So you can get down to work straight away!

This ISO calibration certificate certifies that your measuring instrument or probe is calibrated. Calibration is carried out according to the ISO standard.

ISO humidity calibration certificate - with 3 measuring points

ISO humidity calibration certificate

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ISO humidity calibration certificate - with 3 measuring points

ISO humidity calibration certificate - with 3 measuring points

General technical data