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 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 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
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 405-7280
Référence fabricantT30SP6RQ
MarqueBanner
93,52 €
Each
Unité
Barrel Through Beam (Receiver) 60 m PNP M12 Connector - - - 30V - - Infrared IP69K 150 mA
N° de stock RS 714-1625
Référence fabricantML100-55/95/103
77,50 €
Each
Unité
Block Retroreflective 5 m PNP 4-Pin M8 Connector - - - 30V - - LED IP67 100 mA
N° de stock RS 170-0725
Référence fabricantOPB715-Z
MarqueOptek
5,648 €
Each (In a Bag of 25)
Unité
Block Retroreflective 12.7 mm - - - - - 5.25V - Wire Lead LED - -
N° de stock RS 842-8560
Référence fabricantWTB2S-2P3130
MarqueSick
118,00 €
Each
Unité
Block Background Suppression 1 → 36 mm PNP 3-Pin M8 Connector 0.2m Cable - - - 30V - M8 LED IP67 20 mA
N° de stock RS 124-0324
Référence fabricantOBT350-R100-2EP-IO-V31-1T
97,29 €
Each
Unité
Block Background Suppression 5 → 350 mm NPN/PNP 4-Pin M8 Connector - - IO-LINK 30V - 4-Pin Connector LED IP67, IP69, IP69K 100 mA
N° de stock RS 763-7882
Référence fabricantWTB12-3P2431
MarqueSick
225,00 €
Each
Unité
Block Background Suppression 20 → 350 mm PNP 4-Pin M12 Connector - - - 30V - - LED IP66, IP67, IP69K 100 mA
N° de stock RS 814-0361
Référence fabricantOID200
163,20 €
Each
Unité
Barrel Background Suppression 30 mm → 2 m NPN/PNP M12 Connector - - IO-LINK 30V - Wire Lead LED IP65, IP67 75 mA
N° de stock RS 786-5889
Référence fabricantVL18-4P3240
MarqueSick
89,50 €
Each
Unité
Barrel Retroreflective 50 mm → 3.7 m PNP 4-Pin M12 Connector - - - 30V - - LED IP67 100 mA
N° de stock RS 768-5897
Référence fabricantE3FARP122M
MarqueOmron
63,75 €
Each
Unité
Barrel Retroreflective 0 → 500 mm PNP Pre-Wired Cable - - - 30V - - LED IP67, IP69K 25 mA
N° de stock RS 752-5045
Référence fabricantXUB5ANANM12
66,90 €
Each
Unité
Barrel Diffuse 600 mm NPN 4-Pin M12 Connector - - - 24V - - Infrared IP65, IP67 100 mA
N° de stock RS 729-5185
MarqueRS PRO
111,00 €
Each
Unité
Block Background Suppression 5 → 250 mm PNP 4-Pin M8 Connector - - - 24V - - LED IP67 100 mA
N° de stock RS 627-8388
Référence fabricantOPB715-Z
MarqueOptek
5,76 €
Each
Unité
Block Retroreflective 12.7 mm - - - - - 5.25V - Wire Lead LED - -
N° de stock RS 488-126
Référence fabricantO5H200
131,84 €
Each
Unité
Block Diffuse 50 mm → 1.4 m PNP M12 Connector - - - 36V - - LED IP65 200 mA
N° de stock RS 219-2274
Référence fabricantEE-SX670
MarqueOmron
14,64 €
Each
Unité
Fork Through Beam (Fork) 5 mm NPN Connector - - - 24V - - Infrared IP50 100 mA
N° de stock RS 288-9776
Référence fabricantWT150-P430
MarqueSick
116,00 €
Each
Unité
Block Diffuse 10 → 250 mm PNP 4-Pin M8 Connector - - - 30V - - LED IP67 100 mA
N° de stock RS 510-3255
Référence fabricantRLK29-55/25/116-SET
110,01 €
Each
Unité
Block Retroreflective 12 m Relay 6-Terminal Screw - 230V - 230V - - LED IP67 2 A