Through-Beam Sensor, M18 X 1, Threaded Type, Sensing Range 15 M, 2-Wire, Ac/Dc, Operating Voltage: 20...250V Ac/Dc (47...63 Hz V Ac), Current Consumption: 5 Ma, Light-On Mode, Quick Disconnect, 1/2 Connector, Housing Material: Pbt, Lens Material: Pmma.