Duct humidity and temperature sensors HYGRASGARD® KFTF-35-U/W

Condensation-protected duct sensor HYGRASREG® KFTF-35 with active and switching output, housing made of impact-resistant plastic with quick-locking screws, cable gland, plastic sinter filter (replaceable), optionally with ⁄ without display, for recording relative humidity (0...100 % RH) and temperature (4 switchable measuring ranges, max. 0...+100 °C) as well as for determining various humidity measurement technology parameters. The measuring transducer converts the measured variables into a standard signal of 0 - 10 V or 4...20 mA.


The device is specially designed for use in the high humidity range (95...99 % RH). A long-term stable, digital humidity and temperature sensor is used. Condensation on the humidity sensor is prevented or made more difficult by excess temperature. A second, separate temperature measuring element is used to determine the actual relative humidity of the ambient air. The following parameters are calculated internally from these measured variables and can be called up via the OUT3 output: absolute humidity, mixing ratio, dew point and wet bulb temperature (switchable via DIP switch).
The sensor is used in medical technology, refrigeration technology, control technology, air conditioning and clean room technology. The sensor is calibrated at the factory; fine adjustment by a specialist is possible depending on the environment.