Basic Humidity Controller (Wall Mount) BHC-1a can operate in either dehumidification or humidification modes. The BHC-1a features a readily visible switch to alternate between dehumidify and humidify settings, making it easy for the end user to differentiate which mode it is operating in. The easy to read dials make programming daytime and nighttime settings uncomplicated. The BHC-1a Basic Humidity Controller is designed to control fans, dehumidifier, humidifiers, misters and other ventilation equipment in gardens, greenhouses, grow rooms or other environments. The BHC-1a can operate in either dehumidification or humidification modes. The BHC-1a features a readily visible switch to alternate between dehumidify and humidify settings, making it easy for the end user to differentiate which mode it is operating in. The easy to read dials make programming daytime and nighttime settings uncomplicated. The (3) function LEDs let users know if the controller has main power, if the controller is in operation, as well as whether the controller is sensing day or night. The BHC-1a controller is ETL listed in the USA and Canada, RoHS compliant, and features durable construction built to withstand high impacts and provide years of reliable performance.BEC-1a Basic Environmental Controller is designed to control fans, air conditioners, dehumidifier and other equipment in gardens, greenhouses, grow rooms or other environments. Input Power 120V / 60hz .1A Output Power 120V / 60Hz 15A 1/3 HP Power Inlet - Wallmount 6.5' (2m) 14 gauge cable Power Inlet - Plugbox NEMA 5-15 Temperature Storage Range 15°F(-10°C) to 140°F(60°C) Temperature Control Range 55°F(13°C) to 95°F(35°C) RH % Control Range 20 % RH to 85 % RH Operating Modes Dehumidify or Humidify Sensor Cable Length 6.5' (2m) RH Hysteresis 3.5 % Dimensions 4.8" (122mm) H x 2.75" (70mm) W x 4.1" (103.5mm) D Weight 1.6 lbs (0.7kg) Wallmount Weight