Description This controller will allow you to precisely monitor and control the environment in your grow room. Featuring an easy-to-use analog interface, this digital controller is easy to program and use. Each set point (temperature, humidity and CO2) are programmed using a set of dedicated knobs. Readings are displayed on easy-to-read digital displays. The sensor that measures the temperature, humidity, light and CO2 levels in your room attaches to the controller with a 15 ft cord. Enclosure resists dust, rust and moisture. 14.5 Amps maximum/ 120 V/ 60 Hz.