LERWAY 110V DHC-100 All-Purpose Air Humidity Control Controller with Humirel Sensor HTG3515CH DHC-100 is Microcomputer hygrostat which adopts macromolecule humidity sensor as induction component. With features of relay control output, high accuracy, rapid response, strong anti-interference ability. Widely used for humidifier, dehumidifier, air humidity controller, and for relative humidity measuring and display. Power supply: 110VAC10%/-15% Good for humidity control