DriSteem 405884-109 Relative Humidity Transmitter Duct/High Limit

The DriSteem 405884-109 Humidity Transmitter is a highly specific humidity sensor intended for use in duct systems in HVAC systems. It measures the relative humidity and is most suitable for high-limit applications and the efficiency of heating, ventilating, and air conditioning equipment. This transmitter uses a thin film capacitive polymer sensor covered by a porous filter to prevent dust and dirt from affecting its performance in different settings. The part has default output of 4 to 20 mA, which will enable it to be easily interfaced with other HVAC control systems. The advantages of this transmitter are lower power consumption, lower possibility of condensation damage, and the possibility to control the humidity level for essential processes or materials.