Electronic Switches (I) P. Ltd; offers Diffuse Scan Sensor in 18 mm dia; Brass housing with 100mm / 300mm range. Units operates on 10 – 30 V DC supply. Sensitivity adjustment is available in the unit to adjust the required range. Range of the sensor is 100 mm or 300mm.
It is 4 wire type sensor with output NPN and PNP with NO or NC selectable.