Perfect central piece of control to any grow room. Remote sensor (with included 25-ft cable, can work up to 200 feet) provides higher precision and reliability. Performs any two of the following control functions: heating, cooling, humidifying, dehumidifying, cooling and dehumidifying, hourly ventilation, (CO2 enrichment or ventilation HTC ONLY). Review performance by reading through the integrated 24-hour data logger (minimum, maximum and average values for each hour of operation). Incorporates fail-safe values for each output in case of sensor problem. Enables higher priority output selection to prevent both outputs operating at the same time. 3 year warranty.