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 842-8566
Référence fabricantWTB2S-2P3110
MarqueSick
118,00 €
Each
Unité
Block Background Suppression 1 → 18 mm PNP 3-Pin M8 Connector 0.2m Cable - - - 30V - M8 LED IP67 20 mA
N° de stock RS 902-7124
Référence fabricantBOS 12M-PS-PR10-02
MarqueBALLUFF
80,77 €
Each
Unité
Barrel Retroreflective 3 m PNP Cable - - - 30V - Cable LED IP67 100 mA
N° de stock RS 816-0337
Référence fabricantE3FCDP23
MarqueOmron
81,90 €
Each
Unité
Barrel Diffuse 1 m PNP M12 Connector - - - 30V - Cable LED IP67, IP68, IP69K 25 mA
N° de stock RS 764-3907
Référence fabricantT18SP6DQ
MarqueBanner
74,72 €
Each
Unité
Barrel Diffuse 500 mm PNP 4-Pin M12 Connector - - - 30V - - Infrared IP69K 150 mA
N° de stock RS 786-5851
Référence fabricantWL260-S270
MarqueSick
154,00 €
Each
Unité
Block Retroreflective 100 mm → 15 m Relay 5-Terminal Screw - 240V - 240V - - LED IP67 3 A
N° de stock RS 807-4560
Référence fabricantEE-SH3
MarqueOmron
3,81 €
Each
Unité
Block Through Beam (Fork) - Phototransistor - - 1.5V - - - PCB Pin - - 50 mA
N° de stock RS 818-1716
Référence fabricantEE-SX675
MarqueOmron
16,54 €
Each
Unité
Fork Through Beam (Fork) 5 mm NPN 4-Pin Connector - - - 24V - Connector Infrared IP50 12 mA
N° de stock RS 284-3304
Référence fabricantE3SCL2
MarqueOmron
224,30 €
Each
Unité
Block Background Suppression 5 → 500 mm NPN 3-Wire Cable 2m - - - 30V - - Infrared IP67 100 mA
N° de stock RS 410-8029
Référence fabricantFHDK 10P 5101S35A
MarqueBaumer
160,40 €
Each
Unité
Block Diffuse 20 → 120 mm PNP 4-Pin M8 Connector - - - 30V - - LED IP67 100 mA
N° de stock RS 786-5891
Référence fabricantVL180-2P42436
MarqueSick
64,50 €
Each
Unité
Barrel Retroreflective 50 mm → 7 m PNP 4-Pin M12 Connector - - - 30V - - LED IP67 100 mA
N° de stock RS 458-866
Référence fabricantWTE11-2P1132
MarqueSick
82,00 €
Each
Unité
Block Retroreflective 40 mm → 1 m PNP Cable - - - 30V - - LED IP66, IP67 100 mA
N° de stock RS 781-5979
Référence fabricantML300-55-2M-RT/59/98/103
78,98 €
Each
Unité
Block Retroreflective 0 → 2 m PNP 3-Pin M8 Connector - - - 30V - - LED IP65 100 mA
N° de stock RS 372-8177
Référence fabricantE3ZR612M
MarqueOmron
99,50 €
Each
Unité
Block Retroreflective 100 mm → 4 m NPN 3-Wire Cable 2m - - - 26.4V - - LED IP69K 100 mA
N° de stock RS 768-5926
Référence fabricantE3FADP22
MarqueOmron
61,45 €
Each
Unité
Barrel Diffuse 300 mm PNP 4-Pin M12 Connector - - - 30V - - LED IP67, IP69K 25 mA
N° de stock RS 256-411
MarqueRS PRO
106,02 €
Each
Unité
Barrel Retroreflective 4 m NPN/PNP M12 Connector - - - 30V - - Infrared IP67 100 mA
N° de stock RS 847-9384
Référence fabricantQS18VP6LPQ8
MarqueBanner
91,37 €
Each
Unité
Barrel Retroreflective 3.5 m PNP 4-Pin M12 Connector - - - 30V - - LED IP67 25 mA
N° de stock RS 371-4651
Référence fabricantVL18-3P3840
MarqueSick
88,00 €
Each
Unité
Barrel Retroreflective 5 mm → 3.7 m PNP 4-Pin M12 Connector - - - 30V - - LED IP67 100 mA
N° de stock RS 786-5882
Référence fabricantWL250-2P2431
MarqueSick
153,00 €
Each
Unité
Block Retroreflective 100 mm → 15 m PNP 4-Pin M12 Connector - - - 30V - - LED IP67 100 mA
N° de stock RS 818-1611
Référence fabricantEE-SX674
MarqueOmron
16,21 €
Each
Unité
Fork Through Beam (Fork) 5 mm NPN 4-Pin Connector - - - 24V - Connector Infrared IP50 12 mA
N° de stock RS 808-9143
Référence fabricantCX-444
MarquePanasonic
126,87 €
Each
Unité
Block Diffuse 15 → 100 mm NPN 2m Cable - - - 24V - - LED IP67 100 mA