Radio Transmitter; -; -; Operating Range 100 Feet Line of Sight; Response Time (ms) -; Sensing Range (Ft.) -; Receiver Size (In.) -; Voltage 110V AC; 433.9 MHz; Operates On 110V; 60 Hz Power Supply Line Cord; NEMA Rating -; Standards -; For Use With All Start and Stop Operations; Garage Door Openers; Includes (2) Transmitters