Aleph America HA350D Photoelectric beam detector - Indoor / outdoor use - Dual beam - 350 feet outdoor - 700 feet indoor - 15.4 x 4.2 x 4.4 in - Transmitter: 40 mA - Receiver: 90 mA - Black polycarbonate - 10.5 VDC to 26 VDC - 8 VAC to 18.5 VAC