AutomationDirect’s new QM series photoelectric sensors are IP67-rated sensors available in three-wire NPN or PNP styles and with visible red and infrared versions. The mini-rectangular photo eye sensors are constructed with plastic housings and have either an attached two-meter output cable or an M8 quick-disconnect connector. The series includes diffuse, diffuse with background suppression, retroreflective, retroreflective for transparent objects, and through-beam styles. All retroreflective models include one rectangular reflector; through-beam models are sold as an emitter and receiver pair. All models have a selectable light-on/dark-on output setting; select models are fitted with an easy-to-use potentiometer for setting switchpoint distance. The QM series sensors start at $35, have complete overload protection, and are available in sensing ranges up to 30m. Backed by a one-year warranty, QM series photoelectric sensors are cULus, CE and RoHS approved.</>
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