Banner SO60-Q08, self contained, DC operated, modulated, 880nm IR transmitter. Usually sold with a receiver but we don't have any receivers. Max separation =20in. Transmitter is 10-30VDC powered. “SYNC” output to gate receiver to reduce false triggering. Meets NEMA 6, IEC IP67 standards. 6in. leads with .250 quick connect terminals. back die cast zinc housing with polysulfone lens.TRANSMITTER ONLY.