M18 Photoelectric Sensor Introduction:

This M18 Photoelectric Sensor by VIOX is a cylindrical M18 threaded proximity sensor that uses infrared light to detect any type of object without touching them.
M18 photoelectric sensors are divided into three types according to their working principles: diffuse reflection type, retro-reflective type and through-beam type. Different types of photoelectric sensors have different sensing distances.
For the diffuse reflective M18 photoelectric sensor, the detection distance is 10.0 mm, and for the retroreflective photoelectric sensor, the detection distance is 2 meters, but a reflective plate is required as the detection point. As for the through-beam type, its transmitter and receiver parts are separated, which makes its sensing distance up to 5 meters.

Additionally, 3-wire PNP, NPN or 2-wire AC outputs are available. So, there are 24 types of this sensor to choose from and you can check out the spec sheet below to choose the right one.
Applications of this M18 photoelectric sensor include fabric industry, object quantity counting, robots, anti-theft and other occasions

Specifications:

Diffuse type	Detection distance			10cm
	10-30VDC	NPN	NO	G18-3A10NA
			NC	G18-3A10NB
			NO+NC	G18-3A10NC
		PNP	NO	G18-3A10PA
			NC	G18-3A10PB
			NO+NC	G18-3A10PC
	90-250VAC	Control lable silicon	NO	G18-3A10LA
			NC	G18-3A10LB
		Relay output
Retroreflective	Detection distance			2m
	10-30VDC	NPN	NO	G18-3B2NA
			NC	G18-3B2NB
			NO+NC	G18-3B2NC
		PNP	NO	G18-3B2PA
			NC	G18-3B2PB
			NO+NC	G18-3B2PC
	90-250VAC	Controllable silicon	NO	G18-3B2LA
			NC	G18-3B2LB
		Relay output
Through-beam	Detection distance			5m
	10-30VDC	NPN	NO	G18-3C5NA
			NC	G18-3C5NB
			NO+NC	G18-3C5NC
		PNP	NO	G18-3C5PA
			NC	G18-3C5PB
			NO+NC	G18-3C5PC
	90-250VAC	Controllable silicon	NO	G18-3C5LA
			NC	G18-3C5LB
		Relay output
DC/AC/Control output				DC:200mA AC:300mA
DC/AC Consumption current				DC<15mA AC<10mA
DC/AC Response time				DC<2ms AC<20ms
Directional angel				3°-10°
Detected object				transparent or opaque body
Working environment temperature				-25℃-+55℃
Intensity of illumination working environment				Sunlight under 10000LX incandescent lamp under 3000LX
Shell material				Plastic
Protection grade				IP66