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 780-0028
Référence fabricantOBR1000-R2-E0
97,88 €
Each
Unité
Block Retroreflective 0 → 1 m NPN - - - - 30V - Cable LED IP67 50 mA
N° de stock RS 444-3445
Référence fabricantXUB0BPSNL2
96,60 €
Each
Unité
Barrel Multimode 120 mm → 15 m PNP, Solid State 3-Wire Cable 2m - - - 24V - - Infrared IP65, IP67 100 mA
N° de stock RS 842-8579
Référence fabricantWTB2S-2P3160
MarqueSick
118,00 €
Each
Unité
Block Background Suppression 1 → 66 mm PNP 3-Pin M8 Connector 0.2m Cable - - - 30V - M8 LED IP67 20 mA
N° de stock RS 768-5881
Référence fabricantE3FARP21
MarqueOmron
61,45 €
Each
Unité
Barrel Retroreflective 100 mm → 4 m PNP 4-Pin M12 Connector - - - 30V - - LED IP67, IP69K 25 mA
N° de stock RS 122-0713
Référence fabricantWL100-2P4439
MarqueSick
77,00 €
Each
Unité
Block Retroreflective 10 mm → 7.2 m PNP 4-Pin M8 Connector - - - 30V - M8 Connector LED IP67 30 mA
N° de stock RS 198-756
Référence fabricantXUB1BPBNL2
63,50 €
Each
Unité
Barrel Retroreflective 4 m PNP Cable - - - 24V - - Infrared IP65, IP67 100 mA
N° de stock RS 768-5872
Référence fabricantE3FATP21
MarqueOmron
89,45 €
Each
Unité
Barrel Through Beam (Emitter and Receiver) 20 m PNP 4-Pin M12 Connector - - - 30V - - LED IP67, IP69K 40 mA
N° de stock RS 405-7375
Référence fabricantQS18VP6LP
MarqueBanner
84,29 €
Each
Unité
Block Retroreflective 3.5 m PNP 4-Wire Cable 2m - - - 30V - - LED IP67 100 mA
N° de stock RS 617-0694
Référence fabricantE3Z-LL86
MarqueOmron
203,00 €
Each
Unité
Block Background Suppression 20 → 300 mm PNP 4-Pin M8 Connector - - - 26.4V - - LED IP67 100 mA
N° de stock RS 818-1621
Référence fabricantEE-SX672P
MarqueOmron
24,41 €
Each
Unité
Fork Through Beam (Fork) 5 mm PNP 4-Pin Connector - - - 24V - Connector Infrared IP50 12 mA
N° de stock RS 374-2066
Référence fabricantE3ZD86
MarqueOmron
99,50 €
Each
Unité
Block Diffuse 5 → 100 mm PNP 4-Pin M8 Connector - - - 26.4V - - Infrared IP69K 100 mA
N° de stock RS 814-1165
Référence fabricantBOS 18M-PA-RH22-S4
MarqueBALLUFF
140,24 €
Each
Unité
Barrel Diffuse 30 → 300 mm PNP M12 x 1-S04 - - - 30V - Wire Lead LED IP67 100 mA
N° de stock RS 198-0575
Référence fabricantE3SGS3B4
MarqueOmron
221,11 €
Each
Unité
Fork Through Beam (Fork) 30 mm PNP 3-Wire Cable 2m - - - 24V - - Infrared IP67 100 mA
N° de stock RS 814-0345
Référence fabricantOGH500
125,13 €
Each
Unité
Barrel Diffuse 15 → 300 mm PNP M12 Connector - - - 36V - Wire Lead LED IP67 25 mA
N° de stock RS 444-3401
Référence fabricantXUB0APSNM12
92,60 €
Each
Unité
Barrel Multimode 120 mm → 15 m PNP 4-Pin M12 Connector - - - 24V - - Infrared IP65, IP67 100 mA
N° de stock RS 458-828
Référence fabricantWL12-3P2431
MarqueSick
160,00 €
Each
Unité
Block Retroreflective 7 m PNP 4-Pin M12 Connector - - - 30V - - LED IP69K 100 mA
N° de stock RS 786-5911
Référence fabricantWL150-P420
MarqueSick
130,00 €
Each
Unité
Block Retroreflective 10 → 700 mm PNP 4-Pin M8 Connector - - - 30V - - LED IP67 100 mA
N° de stock RS 919-6582
Référence fabricantWTB2S-2P3251
MarqueSick
128,00 €
Each
Unité
Block Background Suppression 1 → 150 mm PNP 4-Pin M8 Connector - - - 30V - M8 LED IP67 20 mA
N° de stock RS 729-5113
MarqueRS PRO
72,86 €
Each
Unité
Barrel Retroreflective 50 mm → 7 m PNP 4-Pin M12 Connector - - - 30V - - LED IP67 100 mA
N° de stock RS 775-4228
Référence fabricantE3FBRP21
MarqueOmron
67,15 €
Each
Unité
Barrel Retroreflective 100 mm → 4 m PNP 4-Pin M12 Connector - - - 30V - - LED IP67, IP69K 25 mA