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Pepperl+Fuchs
295670-100156
OBT650-R201-2EP-IO-V1, Photoelectric Sensor, BGS, 650mm, LED, 10-30VDC, 4-in-1 Output, IO-Link, M12
$193.76$193.76 -
Carlo Gavazzi
PA18CLD01TO
Photoelectric Diffuse Reflective Sensor, M18, 20-250VAC Power Supply, 100mm Range, 2-Wire SCR NO, 2m PVC Cable, Modulated, Infrared Light 880nm, PBTP Housing, IP67
$120.02$120.02 -
Pepperl+Fuchs
267075-0121
Photoelectric, DC, Retroreflective, Laser, 0.2 … 12 m, M8 Quick Disconnect
$192.64$192.64 -
Baumer
OM20-P0120.HV.AUN
Distance Sensor, 16-120mm, 12-28VDC, 0-10VDC Output, Teach-In, Point Beam, Laser Class 2, Pulsed Red Laser Diode, Die-Cast Zinc, M8 4-pin Connector, IP67, CE, cULus, -10 to +50°C Operating Temperature, 37 x 34.5 x13mm (HWD)
$1,848.89$1,848.89 -
Pepperl+Fuchs
267075-100027
Photoelectric, DC, Retroreflective, Laser, 0.2 … 12 m, 2m Cable with Flying Leads, Returns of This Item Must Be Approved by Manufacturer
$192.64$192.64 -
Baumer
O300.GP-GW1B.72CU
Diffuse Sensor with Background Suppression (BGS), Pulsed PinPoint LED, 10-30VDC, 30-200mm Sensing Range, qTeach/External Sensing Adjustment, Light/Dark Operate, Push-Pull, 2m 4-pin Cable, IP67, 32.3 x 12.9 x 23mm (HWD)
$284.60$284.60 -
Baumer
OM20-P0120.HH.TXN
Photoelectric Distance Sensor, 16-120mm, 12-28VDC, RS485, Modbus RTU, Teach-In, Point Beam, Laser Class 1, Pulsed Red Laser Diode, Die-Cast Zinc, M8 4-pin Connector, IP67, CE, cULus, -10 to +50°C Operating Temperature, 37 x 34.5 x13mm (HWD)
$1,725.60$1,725.60 -
Pepperl+Fuchs
267075-100274
Photoelectric Retroreflective Sensor with Polarization Filter, Miniature Design, 10-30VDC, 0-6m Detection Range, IO Link, 2m Cable, 36.5H x 15W x 26.7Dmm, IP67/69/69K
$108.64$108.64 -
Pepperl+Fuchs
134129
Photoelectric Retroreflective Sensor with Polarization Filter, 12-240VAC/DC, 0-17m Detection Range, Light On/Dark On Switchable, -40 to 60°C (-40 to 140°F) Ambient Temperature, 88 x 25.8 x 65.5mm (HWD), IP67
$343.98$343.98 -
Pepperl+Fuchs
267075-100019
Photoelectric, DC, Clear Object Retro, LED, 0 … 5 m, M12 Quick Disconnect with 300mm Cable
$192.64$192.64 -
Available Now! 
Available Now!Baumer
OM20-P0120.HH.YIN
Distance Sensor, 16-120mm, 12-28VDC, 4-20mA/2-10mA, IO-Link V1.1, Teach-In, Point Beam, Laser Class1, Pulsed Red Laser Diode, Die-Cast Zinc, M8 4-pin Connector, IP67, CE, cULus, -10 to +50°C Operating Temperature, 37 x 34.5 x 13mm (HWD)
$1,725.60$1,725.60 -
Available Now! 
Available Now!Baumer
OM30-L0350.HV.YUN
Photoelectric Distance Sensor, Laser Line, 50-350mm Range, Analog and Digital Output Signal: 0-10VDC/0-5VDC, 12-28VDC, 50mA, Teach-In Button/IO Link, Pulsed Red Laser Diode, Die-Cast Zinc, M8 4-pin Connector, IP67, -10 to +50°C° Operating T
$1,725.60$1,725.60
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