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 512-4640
Référence fabricantXUK1ARCNL2
91,50 €
Each
Unité
Compact Retroreflective 7 m Relay 5-Wire Cable 2m - 240V - 240V - - Infrared IP65 3 A
N° de stock RS 444-3619
Référence fabricantXUX0ARCTT16
188,00 €
Each
Unité
Block Multimode 1.3 m, 2 m, 11 m, 40 m Relay 5-Terminal Screw - 240V - 240V - - Infrared IP65, IP67 3 A, 500 mA
N° de stock RS 878-7948
Référence fabricantXUK1ARCNL2H60
114,00 €
Each
Unité
Compact Retroreflective 10 m Relay 5-Wire Cable 2m - 240V - 240V - Cable LED IP65 3 A
N° de stock RS 444-3530
Référence fabricantXUK0AKSAM12
115,00 €
Each
Unité
Compact Through Beam (Emitter) 280 mm → 30 m NPN/PNP 4-Pin M12 Connector - - - 24V - - Infrared IP65 100 mA
N° de stock RS 455-4983
Référence fabricantXUK0ARCTL2
134,00 €
Each
Unité
Compact Multimode 280 mm → 30 m Relay 5-Wire Cable 2m - 240V - 240V - - Infrared IP65 3 A
N° de stock RS 444-3552
Référence fabricantXUK0AKSAM12T
56,00 €
Each
Unité
Compact Through Beam (Emitter) 30 m - 4-Pin M12 Connector - - - 24V - - Infrared IP65 100 mA
N° de stock RS 753-0283
Référence fabricantXUK2ARCNL2T
56,00 €
Each
Unité
Compact Through Beam (Emitter) 30 m Solid State 2-Wire Cable 2m - 240V - 240V - - Infrared IP65 3 A
N° de stock RS 753-0292
Référence fabricantXUK9APBNL2
86,60 €
Each
Unité
Compact Retroreflective 5 m PNP Cable - - - 24V - - LED IP65 100 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 198-756
Référence fabricantXUB1BPBNL2
63,50 €
Each
Unité
Barrel Retroreflective 4 m PNP Cable - - - 24V - - Infrared IP65, IP67 100 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 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 753-0353
Référence fabricantXUM0ANSAM8
124,00 €
Each
Unité
Block Multimode 100 mm → 10 m NPN 4-Pin M8 Connector - - - 24V - - Infrared IP65, IP67 100 mA
N° de stock RS 281-1537
Référence fabricantXU8M18MA230
122,00 €
Each
Unité
Barrel Diffuse 120 mm Relay 2-Wire Cable 2m - 240V - 240V - - Infrared IP67 200 mA
N° de stock RS 686-2227
Référence fabricantXUM5APCNL2
69,10 €
Each
Unité
Block Diffuse 1 m PNP Cable - - - 24V - - Infrared IP65, IP67 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 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 752-5238
Référence fabricantXUB1ANBNM12
63,80 €
Each
Unité
Barrel Retroreflective 4 m NPN 4-Pin M12 Connector - - - 24V - - Infrared IP65, 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 609-0784
Référence fabricantXUB5APANM12
66,90 €
Each
Unité
Barrel Diffuse 600 mm PNP 4-Pin M12 Connector - - - 24V - - Infrared IP65, IP67 100 mA