Carlo Gavazzi Amplifier For Through Beam Sensors, Range Up To: 50000mm, Manuael Adjustable Sensitivity, Disgnostic Functions, Alignment Help, Power Supply : 24 Vac/dc, Spdt Relay Output, 11 Pole Plug Connectorection, Ul508, Ul325, Csa, Multiplex S - S142CRXM924