Proportional speed thermostatic fan control extends both equipment and fan life and reduces service calls by varying the fan speed of up to four fans based on temperature. The fan control includes 3 user selectable temperature ranges, a local on/off switch, status LEDs, and a temperature probe with a 5 ft. wire. This control is designed to work specifically with AC fans that are offered by Middle Atlantic Products, or other fans with similar specifications. Max fan load is 1.5 Amps at 120 volts. Mounts to rackrail brackets or any flat surface Has four controlled outlets for fans Proportional speed thermostatic control extends equipment and fan life Can control up to four fans based on the temperature in the enclosure Features three temperature ranges and proportional/full on switch