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 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 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 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 293-8547
Référence fabricantFHDM12P5001/S35A
MarqueBaumer
190,50 €
Each
Unité
Block Diffuse 15 → 300 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 842-8529
Référence fabricantGTB10-P4212
MarqueSick
110,00 €
Each
Unité
Block Background Suppression 20 → 950 mm PNP M12 Connector - - - 30V - M12 LED IP67 20 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 768-5917
Référence fabricantE3FADP21
MarqueOmron
61,45 €
Each
Unité
Barrel Diffuse 100 mm PNP 4-Pin M12 Connector - - - 30V - - LED IP67, IP69K 25 mA
N° de stock RS 714-1622
Référence fabricantML100-55/103/115
77,50 €
Each
Unité
Block Retroreflective 5 m PNP 3-Wire Cable 2m - - - 30V - - LED IP67 100 mA
N° de stock RS 444-3524
Référence fabricantXUK0AKSAL2
115,00 €
Each
Unité
Compact Through Beam (Emitter) 280 mm → 30 m PNP 3-Wire Cable 2m - - - 24V - - Infrared IP65 100 mA
N° de stock RS 229-096
Référence fabricantGLV18-55/73/120
54,53 €
Each
Unité
Barrel Retroreflective 4 m PNP 4-Pin M12 Connector - - - 30V - - LED IP67 100 mA
N° de stock RS 847-9182
Référence fabricantQS18VN6FF100
MarqueBanner
112,76 €
Each
Unité
Barrel Diffuse 100 mm NPN Cable - - - 30V - - LED IP67 25 mA
N° de stock RS 124-0323
Référence fabricantOBT350-R100-2EP-IO-V31
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 763-9377
Référence fabricantXUM8APCNL2
76,50 €
Each
Unité
Block Background Suppression 300 mm PNP Cable - - - 24V - - LED IP67 100 mA
N° de stock RS 842-2899
Référence fabricantQ12AB6FF30Q
MarqueBanner
121,78 €
Each
Unité
Block Diffuse 30 mm NPN/PNP Cable - - - 30V - - LED IP67 20 mA
N° de stock RS 808-9449
Référence fabricantCX-491-P
MarquePanasonic
99,35 €
Each
Unité
Block Retroreflective 3 m PNP 2m Cable - - - 24V - - LED IP67 100 mA
N° de stock RS 784-6705
Référence fabricantDS50-P1122
MarqueSick
365,00 €
Each
Unité
Block Background Suppression 200 mm → 10 m PNP 5-Pin M12 Connector - - - 30V - - Laser Light IP65 100 mA
N° de stock RS 530-0866
Référence fabricantWTB27-3P2411
MarqueSick
290,85 €
Each
Unité
Block Diffuse 30 mm → 1.6 m PNP 4-Pin M12 Connector - - - 30V - - Infrared IP69K 100 mA
N° de stock RS 307-913
Référence fabricantOPB704
MarqueOptek
2,41 €
Each
Unité
Block Retroreflective 3.8 mm NPN - - - - - - Wire Lead Infrared - -
N° de stock RS 370-4187
Référence fabricantFZAM18P1150/S14
MarqueBaumer
82,30 €
Each
Unité
Barrel Diffuse 60 → 430 mm PNP 4-Pin M12 Connector - - - 30V - - Infrared IP65 200 mA