Rotronic Hygroflex HF4 Transmitter is designed to measure Temperature, Relative Humidity, and Dew Point calculation and displayed on the LCD screen. This Hygroflex4 Transmitter has a Temperature measuring range of up to 100 °C and Relative Humidity range of up to 100 % RH. This device is user friendly and can be Wall or Duct mounting.  
Applications: museums, greenhouses, warehouses, libraries, railway stations, indoor environments