The Eos� Complete Digital Humidity Controller allows you to accurately and efficiently control the humidity levels in your garden. Set your desired humidity level and the controller will activate and deactivate humidifying and dehumidifying equipment appropriately. This controller also features low temperature protection in the event that achieving the desired humidity level results in an undesirable temperature. This Eos� unit features a 15 ft remote sensor that monitors your temperature and humidity levels. The easy-to-use analog style interface makes programming the controller a simple task. Day and night settings allow for accurate environmental control.