The relative humidity transmitter continuously measures the ambient humidity and provides an analog output directly proportional to the Relative Humidity. The output signal is given from 0-100% RH. The 2-wire models provides a passive 4-20mA output requiring a current loop supply of 4.5-35VZ. The output of the 3/4-wire model is user selectable: 0-1V, 0-2,5V, 0-5V or 0-10V. The unit is factory set at 0-10V. Relative Humidity Transmitters can be combined with a temperature transmitter or a single Pt100 or Pt1000 element. Customized versions on request. Options include a PVDF, a wire-mesh and a stainless steel filter to protect the sensors in dusty environments, a weather protection cap for Meteo applications and a mounting flange.