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 Price Sensor Style Detection Type Detection Range Output Type Electrical Connection Switching Mode Maximum AC Voltage Communication Protocol Maximum DC Voltage Terminal Type Light Source IP Rating Maximum Current Interface
RS庫存編號 812-8153
製造零件編號CX-441
BrandPanasonic
TWD4,345.00
單位
Block Retroreflective 2 → 50 mm NPN 2m Cable - - - 24V - LED IP67 20 mA -
RS庫存編號 808-9171
製造零件編號CX-422
BrandPanasonic
TWD3,682.00
單位
Block Diffuse 800 mm NPN 2m Cable - - - 24V - Infrared IP67 100 mA -
RS庫存編號 808-9199
製造零件編號CX-442
BrandPanasonic
TWD4,659.00
單位
Block Diffuse 20 → 300 mm NPN 2m Cable - - - 24V - LED IP67 100 mA -
RS庫存編號 361-5510
製造零件編號EX-13A-PN
BrandPanasonic
TWD4,410.00
單位
Block Through Beam (Emitter and Receiver) 500 mm PNP 3-Wire Cable 2m - - - 24V - LED IP67 50 mA -
RS庫存編號 125-4567
製造零件編號PM-Y65
BrandPanasonic
TWD685.00
單位
Fork Through Beam (Fork) 6 mm NPN 4-Pin Connector - - - 24V 4-Pin Connector Infrared IP40 50 mA -
RS庫存編號 808-9121
製造零件編號CX-411
BrandPanasonic
TWD3,867.00
單位
Block Through Beam (Emitter and Receiver) 10 m NPN 3-Wire Cable 2m - - - 24V - LED IP67 100 mA -
RS庫存編號 810-2980
製造零件編號NX5-D700A
BrandPanasonic
TWD3,658.00
單位
Block Diffuse 700 mm - Cable - 240V - 240V Cable Infrared IP66 1 A ac, 2 A dc -
RS庫存編號 361-5554
製造零件編號EX-14A-PN
BrandPanasonic
TWD3,582.00
單位
Block Retroreflective 2 → 25 mm PNP 3-Wire Cable 2m - - - 24V - LED IP67 50 mA -
RS庫存編號 361-5532
製造零件編號EX-13EA-PN
BrandPanasonic
TWD4,398.00
單位
Block Through Beam (Emitter and Receiver) 500 mm PNP 3-Wire Cable 2m - - - 24V - LED IP67 50 mA -
RS庫存編號 125-4533
製造零件編號PM-R25-C3
BrandPanasonic
TWD983.00
單位
Fork Through Beam (Fork) 6 mm NPN 3m Cable - - - 24V Cable Infrared IP64 50 mA -
RS庫存編號 125-4543
製造零件編號PM-L45
BrandPanasonic
TWD716.00
單位
Fork Through Beam (Fork) 6 mm NPN 1m Cable - - - 24V Cable Infrared IP64 50 mA -
RS庫存編號 125-4551
製造零件編號PM-F45
BrandPanasonic
TWD705.00
單位
Fork Through Beam (Fork) 6 mm NPN 1m Cable - - - 24V Cable Infrared IP64 50 mA -
RS庫存編號 812-8395
製造零件編號PM2-LH10-C1
BrandPanasonic
TWD2,968.00
單位
Block Diffuse 2.5 → 8 mm NPN Cable - - - 24V Wire Lead LED - 80 mA -
RS庫存編號 908-4035
製造零件編號HG-C1200
BrandPanasonic
TWD18,096.00
單位
Block Background Suppression 200 mm NPN Cable - - - 24V - Laser Light IP67 40 mA -
RS庫存編號 125-4541
製造零件編號PM-T45-P
BrandPanasonic
TWD723.00
單位
Fork Through Beam (Fork) 6 mm PNP 1m Cable - - - 24V Cable Infrared IP64 50 mA -
RS庫存編號 125-4542
製造零件編號PM-T45-P-C3
BrandPanasonic
TWD1,010.00
單位
Fork Through Beam (Fork) 6 mm PNP 3m Cable - - - 24V Cable Infrared IP64 50 mA -
RS庫存編號 125-4534
製造零件編號PM-R25-P
BrandPanasonic
TWD757.00
單位
Fork Through Beam (Fork) 6 mm PNP 1m Cable - - - 24V Cable Infrared IP64 50 mA -
RS庫存編號 812-8213
製造零件編號CY-192A-P-Z-Y
BrandPanasonic
TWD1,125.00
單位
Barrel Retroreflective 4 m PNP M12 Connector - - - 24V - Infrared IP67 35 mA -
RS庫存編號 125-4535
製造零件編號PM-K45
BrandPanasonic
TWD794.00
單位
Fork Through Beam (Fork) 6 mm NPN 1m Cable - - - 24V Cable Infrared IP64 50 mA -
RS庫存編號 431-2010
製造零件編號EQ34PN
BrandPanasonic
TWD5,286.00
單位
Block Retroreflective 0.1 → 2 m PNP 3-Wire Cable 2m - - - 30V - Infrared IP67 100 mA -