Photoelectric Sensors

Photoelectric sensors detect and measure physical objects or quantities by emitting a field or beam of electromagnetic radiation, an object is detected by measuring alterations in the return signal. There are 3 main types of photoelectric sensors which provide reliable detection, these are through-beam, retro-reflective and diffuse. The basic function of each is to detect the presence or absence of objects or measure the distance to the object.RS Components offer an extensive selection of photoelectric sensors for use various industrial applications. Our high-quality products are supplied from leading brands including Omron, Sick, Pepperl + Fuchs Telemecanique Sensors Baumer, Banner and of course RS PRO.

Through-beam Sensors

Through-beam sensors (aka thru-beam) rely on two separate housings, one for the transmitter and one for the receiver, with the transmitter providing a continuous beam of light to the receiver. Each time an object passes through the beam this interrupts the signal between the transmitter and receiver, which in turn causes the receiver to send an electrical signal to the output. Through-beam sensors are suited to long-distance sensing and can detect almost any object, irrespective of colour or angular motion.

Retro-reflective Sensors

Retro-reflective photoelectric sensors (retroreflective) have both the transmitter and receiver contained within the same housing but require a reflector opposite to the sensor. The reflector bounces the light beam back to the transmitter until an object breaks the beam. Objects which are highly reflective such as aluminium require sensors with polarising filters. The filter allows the sensor to acknowledge that the reflected light from reflecting materials is different from the reflector.

Diffuse Sensors

Diffuse sensors (proximity sensor) are easier to install as only one device must be mounted. This is because the transmitter and receiver are contained within one housing. Diffuse sensors use the reflection from the target object within a predetermined sensing range. The transmitter sends out a continuous beam of light, once this hits the target it is diffused in all directions, a part of this light is reflected and recognised by the receiver, the receiver then sends an electrical signal to the output.A special type of diffused mode is background suppression which enables the user to precisely control the sensing range.


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Description Prix Sensor Style Detection Type Detection Range Output Type Electrical Connection Switching Mode Maximum AC Voltage Communication Protocol Maximum DC Voltage Optical Technology Terminal Type Light Source IP Rating Maximum Current
N° de stock RS 856-8359
Référence fabricantPD112CNB25BP
184,41 €
Each
Unité
- - 500 mm → 2.5 m NPN/PNP - - - - 30V - Cable - IP67 -
N° de stock RS 778-8700
Référence fabricantE3JK-DR12 2M
MarqueOmron
78,30 €
Each
Unité
Block Diffuse 300 mm Relay 5-Wire Cable 2m - 240V - 240V - Wire Lead LED IP64 -
N° de stock RS 818-1756
Référence fabricantEE-SX675-WR 1M
MarqueOmron
26,21 €
Each
Unité
Fork Through Beam (Fork) 5 mm NPN - - - - 24V - Pre-Wired Infrared IP50 35 mA
N° de stock RS 609-0813
Référence fabricantXUX1ARCNT16
129,00 €
Each
Unité
Block Retroreflective 14 m Relay 5-Terminal Screw - 240V - 240V - - Infrared IP65, IP67 3 A, 500 mA
N° de stock RS 908-7021
Référence fabricantOP506A
MarqueOptek
0,826 €
Each (In a Pack of 50)
Unité
- - - - - - - - - - - - - -
N° de stock RS 374-2044
Référence fabricantE3ZR86
MarqueOmron
99,50 €
Each
Unité
Block Retroreflective 100 mm → 4 m PNP 4-Pin M8 Connector - - - 26.4V - - LED IP69K 100 mA
N° de stock RS 714-1583
Référence fabricant42JS-D2MPA1-F4
49,17 €
Each
Unité
Block Diffuse 3 → 800 mm PNP 4-Pin Connector - - - 30V - - - IP67 -
N° de stock RS 444-3451
Référence fabricantXUB0BPSNM12
96,60 €
Each
Unité
Barrel Multimode 120 mm → 15 m PNP 4-Pin M12 Connector - - - 24V - - Infrared IP65, IP67 100 mA
N° de stock RS 768-5894
Référence fabricantE3FARN22
MarqueOmron
63,75 €
Each
Unité
Barrel Retroreflective 0 → 500 mm NPN 4-Pin M12 Connector - - - 30V - - LED IP67, IP69K 25 mA
N° de stock RS 488-132
Référence fabricantO5P200
112,89 €
Each
Unité
Block Retroreflective 100 mm → 7 m PNP M12 Connector - - - 36V - - LED IP67 200 mA
N° de stock RS 194-4018
Référence fabricantOPB608A
MarqueOptek
1,63 €
Each
Unité
Block Retroreflective 1.3 → 9.5 mm NPN - - - - - - Wire Lead Infrared - -
N° de stock RS 847-9426
Référence fabricantQS18VP6RQ8
MarqueBanner
76,47 €
Each
Unité
Barrel Through Beam (Receiver) 20 m PNP 4-Pin Connector - - - 30V - - LED IP67 25 mA
N° de stock RS 121-2724
Référence fabricantGL6G-P4211
MarqueSick
68,00 €
Each
Unité
Block Retroreflective >6 m PNP 4-Pin M8 Connector - - - 30V - M8 LED IP67 30 mA
N° de stock RS 714-1644
Référence fabricantML100-8-H-350-RT/95/103
111,43 €
Each
Unité
Block Diffuse 5 → 350 mm PNP 4-Pin M8 Connector - - - 30V - - LED IP67 100 mA
N° de stock RS 444-3625
Référence fabricantXUX0ARCTT16T
102,00 €
Each
Unité
Block Through Beam (Emitter) 40 m - 3-Terminal Screw - 240V - 240V - - Infrared IP65, IP67 3 A, 500 mA
N° de stock RS 818-1504
Référence fabricantEE-SX872
MarqueOmron
38,06 €
Each
Unité
- - - NPN - - - - - - - GaAs Infrared LED IP60 -
N° de stock RS 741-7613
Référence fabricantVTE18-4P4240V
MarqueSick
94,00 €
Each
Unité
Barrel Diffuse 450 mm PNP 4-Pin M12 Connector - - - 30V - - Infrared IP67, IP68, IP69K 100 mA
N° de stock RS 729-5195
MarqueRS PRO
67,50 €
Each
Unité
Block Retroreflective 7.2 m PNP 4-Pin M8 Connector - - - 24V - - LED IP67 100 mA
N° de stock RS 768-6077
Référence fabricantE3RADP132M
MarqueOmron
66,28 €
Each
Unité
Barrel Diffuse 700 mm PNP Pre-Wired Cable - - - 30V - - LED IP67, IP69K 25 mA
N° de stock RS 219-2404
Référence fabricantEE-SY671
MarqueOmron
23,72 €
Each
Unité
Block Retroreflective 1 → 5 mm NPN Non-Solder Connector - - - 24V - - Infrared IP50 100 mA