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Baumer
O500W.SP-GW1J.PVO/H002
SmartReflect Light Barrier, Washdown Design, Standard Object Detection, 10-30VDC, 60-600mm Background Position Sde, Pulse PinPoint LED, 630 nm, Push-Pull, Teach-In and IO-Link, Light/Dark Operate, M12 4-Pin Connector, Stainless Steel Housin
$379.40$379.40 -
Pepperl+Fuchs
267075-100102
Photoelectric, DC, Thru-Beam (Receiver), LED, 0-12m, M8 Quick Disconnect
$87.36$87.36 -
Pepperl+Fuchs
267075-100106
Photoelectric Thru-Beam Sensor (Receiver), Returns of This Item Must Be Approved by Manufacturer
$96.32$96.32 -
Pepperl+Fuchs
267075-100114
Photoelectric, DC, Thru-Beam (Receiver), Laser, 0-20m, M8 Quick Disconnect, Returns of This Item Must Be Approved by Manufacturer
$103.04$103.04 -
Takex
DLN-S3RV
Photo Sensor, 30mm, NPN, Short, BGS/FGS Selector, 12-24VDC, Light ON/Dark ON, w/2m Cable, IP67
$129.63$129.63 -
Carlo Gavazzi
PH18CNB20PAM1SA
Photoelectric Diffuse Reflective Sensor with Background Suppression, M18 Square Housing, 0-200mm (0.2m) Range, Polarity Free Red Light 625nm, 10-30VDC Power Supply, PNP Output, NO/NC, Light and Dark Switching, M12 4-pin Plug, Adjustable Sen
$103.20$103.20 -
Pepperl+Fuchs
267075-100500
Photoelectric LED Triangulation Sensor with Background Suppression, Returns of This Item Must Be Approved by Manufacturer
$163.52$163.52 -
Pepperl+Fuchs
295670-100035
Photoelectric Retroreflective Laser Sensor, 25m, 10-30V, 4-Pin Output, IO-Link, M12
$231.84$231.84 -
Available Now! 
Available Now!Baumer
FHDK 04G6102/KS35A
Subminiature Diffuse Sensor with Background Suppression (BGS), Pulsed Point Source LED, 50mm Tw Range, 11-30VDC, Light Operate, Push-Pull, 50mA, 200mm Flylead Connector M8 4-Pin, 44.8 x 4 x 6.2mm (HWD), ASA Housing, PMMA Optics, -10 to +50°C, IP65
$410.80$410.80 -
Baumer
O500.SP-GW1J.72O
SmartReflect Light Barrier, 10-30VDC, 60-600mm Background Position Sde, Pulsed PinPoint LED, 630 nm, Push-Pull, Teach-In and IO-Link, Light/Dark Operate, M12 4-Pin Connector, Plastic Housing, PMMA Optics, 45 x 18 x 32mm (HWD), -25 to 60°C O
$302.20$302.20 -
Available Now! 
Available Now!Carlo Gavazzi
PA18CAR65PASA
Photoelectric, Retro-Reflective, M18 Axial, 10-30VDC, 6.5m Range, PNP NO/NC, 2m Cable
$51.32$51.32 -
Pepperl+Fuchs
267075-100113
Photoelectric Thru-Beam Sensor (Receiver), Returns of This Item Must Be Approved by Manufacturer
$103.04$103.04
Photoelectric sensors detect the distance, absence or presence of an object. These sensors are great for sensing long distances and detecting most materials.
How Does a Photoelectric Sensor Work?
Generally a photoelectric sensor consists of the following:
- Transmitter - emits the light beam
- Receiver - detects the light beam and converts it to an electrical signal
Photoelectric sensors detect changes in the light beam caused by the presence/absence, movement or properties of an object.
Types of Photoelectric Sensors:
- Through-Beam (Thru-Beam)
- Transmitter and receiver are two separate units that are directly opposite of each other. The sensor detects when an objects breaks the light beam
- Great for long distance detection
- Ideal for conveyors, counting or monitoring door openings
- Retroreflective (Reflective Mode)
- Transmitter and receiver are in one housing; light beam is reflected back by a reflector. Detection is triggered when an object breaks the beam.
- Medium range detection and easier to install than a through beam
- Ideal for package detection and pallet positioning
- Diffuse (Proximity Mode)
- The transmitter and receiver in one housing; the sensor detects light reflected directly off the target object (no reflector needed)
- Best for short range applications
- Ideal for detecting objects on assembly lines, verifying presence or checking fill level
- Specialized Types:
- Background Suppression: Can ignore objects beyond a set distance, focuses close range
- Color or Contrast Sensors: Detects specific colors or contrast differences
- Distance Measuring Sensors: Mesaure the distance to an object
Categories Related to Photoelectric Sensors:
- Stack lights - signal towers visually communicate the data or alerts that the photoelectric sensors are generating
- Smart relays - photoelectric sensors provide input signals which can process the data and control outputs
- Pushbuttons and estops - if your sensor detects a fault, an operator can use a pushbutton to reset the system
- HMIs - HMIs can dispay the data from the photoelectric sensor which allows you to monitor processes