Activates one gate or device; Stores up to 40 transmitter codes, Auto voltage sensing – no jumpers to set, Codes: 1,000,000+ (factory pre-coded), Power: 12 – 30 VAC or 10.5 – 30 VDC, Whip antenna, 3 ft. coax cable, and bulkhead connector included, Single Form “A in. (normally open) relay rated at 30 Volts AC/DC up to 5 Amps; 318 MHz