The photoelectric sensor from AutomationDirect (Cumming, GA) now includes 18 mm rectangular plastic DC models. The IP67 rated sensors, available in 12 varieties, feature an 18mm diameter threaded lens and M12 quick-disconnect.
The GX3 series is a diffuse photoelectric available with either NPN or PNP light-on outputs, and features background suppression technology with fixed sensing distances of 100 mm or 150 mm. The GXP, a polarized reflective photoelectric, includes either PNP light-on output, or NPN or PNP dark-on output. The sensors, which contain one round reflector, also feature fixed sensing distances of up to 20 meters. The GXR/E series are through-beam photoelectric models available with either NPN or PNP light-on or dark-on outputs. They offer fixed sensing distances of up to four meters.