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Baumer
O500.SP-GW1B.72O
SmartReflect Light Barrier, 10-30VDC, 60-600mm Background Position Sde, Pulsed PinPoint LED, 630 nm, Push-Pull, qTeach/External, Light/Dark Operate, M12 4-Pin Connector, Plastic Housing, PMMA Optics, 45 x 18 x 32mm (HWD), -25 to 60°C Operat
$284.60$284.60 -
Baumer
O500.GR-GW1T.72O
Diffuse Sensor, Background Suppression, 10-30VDC, 60-550mm Sensing Distance Tw, 30-600mm Sensing Range Tb, Pulsed Red LED, 630 nm, Push-Pull, qTeach, Light/Dark Operate, M12 4-Pin Connector, Plastic Housing, PMMA Optics, 45 x 18 x 32mm (HWD
$213.80$213.80 -
Baumer
O500W.RP-GW1B.PVO
Retroreflective Sensor, Polarization Filter, Washdown Design, 10-30VDC, 7.5 Actual Range Sb, 8m Nominal Range Sn, Pulsed PinPoint LED, 630 nm, Push-Pull, qTeach/Remote, Light/Dark Operate, M12 4-Pin Connector, Stainless Steel Housing, PMMA
$258.80$258.80 -
Available Now! 
Available Now!Pepperl+Fuchs
295670-100005
Photoelectric Diffuse Sensor, LED, 1.4m, 10-30VDC, 4-in-1 Output, IO-Link, M12
$95.63$95.63 -
Leuze
50137050
Diffuse Sensor with Background Suppression, 0.005-0.2m, LED, Red, Connector, M8, Metal, 4-Pin, NCNR
$238.00$238.00 -
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 -
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 -
Leuze
50129413
Polarized Retro-Reflective Photoelectric Sensor, 0-3m, Laser, Red, PNP, Cable, M12, Metal, 4-Pin, NCNR
$386.00$386.00 -
Available Now! 
Available Now!Leuze
50136265
Polarized Retro-Reflective Photoelectric Sensor, 0-3.6m, LED, Red, PNP, Connector, M8, Metal, 4-Pin, NCNR
$252.00$252.00 -
Baumer
O500W.SP-GW1J.PVO
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 Housing
$379.40$379.40 -
Baumer
O500W.TR-ZZZZ.PVO
Thru-Beam Sensor, Emitter, Washdown Design, 10-30VDC, 25m Actual Range Sb, 40m Nominal Range Sn, Pulsed Red LED, 645 nm, M12 4-Pin Connector, Stainless Steel Housing, PMMA Optics, 47.2 x 20.2 x 37.7mm (HWD), -25 to +60°C Operating Temper
$197.69$197.69 -
Leuze
50127045
Photoelectric Sensor Transmitter, Throughbeam, 0-150m, LED, Red, Connector, M12, Plastic, 4-Pin, NCNR
$147.00$147.00
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