Preventa XUSL4E Light Beam Receiver, Transmitter, 4 Beam, 4 m, 12 m Max Range. Minimum Scanning Distance: 0m. SIL IEC 61508: 3. Peak Wavelength: 950nm. Maximum Response Time: 3 ms. Terminal Type: 5-Pin M12 Male Connector (Transmitter), 8-Pin M12 Male Connector (Receiver). Dimensions: 31 x 29.4 x 1053 mm. Protective Height: 910mm. Width: 29.4mm. MPN: XUSL4E4BB091N, Schneider Electric