DHT44 is kind of a digital controller with thermostat and higrostat single device. Relative humidity is measured in 0%RH ~100%RH range by it’s coupled sensor (EHS11) and can be controlled for drying or moistening. Temperature regulation can be either heating or cooling. These controllers are available in standart compact size 33x75mm, with IP65 protection rating. The user interface consists of a custom display (two line value display and function icons) and three front keys. The device is installed by panel with snap-in brackets.