-
Pepperl+Fuchs
018937
Fiber Optic Sensor, 10-30VDC, 600mm Detection Range, Light/Dark On, PNP, 30H x 30W x 102Dmm, IP67
$560.70$560.70 -
Pepperl+Fuchs
117302
Safety Thru-Beam Sensor, Transmitter, 0.2-10m Effective Detection Range, LED, 660nm Light Source, Power Supply via Control Unit, Operation on Control Units of SB4 (SafeBox), M12 5-Pin 90° Rotatable Connector, IP67, Returns are subject to Ma
$231.84$231.84 -
Pepperl+Fuchs
117304
Safety Thru-Beam Sensor, Receiver, 0.2-10m Effective Detection Range, LED, 660nm Light Source, Power Supply via Control Unit, Operation on Control Units of SB4 (SafeBox), M12 5-Pin 90° Rotatable Connector, IP67, Returns Subject to Manufactu
$296.10$296.10 -
Pepperl+Fuchs
183439
Photoelectric, Light On/Dark On, Diffused, Backgr, 350mm Sensing, Background Suppression
$357.28$357.28 -
Pepperl+Fuchs
253565
Photoelectric DuraBeam Laser Retroreflective Sensor, Flat Design, Space-Saving M2 Mounting, 12-24V, 1.5m Detection Range, Red Light, Dark On, NPN Output, 2m PUR Cable, 25.5H x 12W x 4.1Dmm, IP67, Returns of This Item Must Be Approved by Manufacturer
$247.52$247.52 -
Pepperl+Fuchs
253566
Photoelectric DuraBeam Laser Retroreflective Sensor, Flat Design, Space-Saving M2 Mounting, 12-24V, 1.5m Detection Range, Red Light, Dark On, PNP Output, 2m PUR Cable, 25.5H x 12W x 4.1Dmm, IP67, Returns of This Item Must Be Approved by Manufacturer
$247.52$247.52 -
Pepperl+Fuchs
253568
Photoelectric Triangulation Sensor with Background Suppression (BGS), Flat Design, Space Saving M2 Mounting, 10-30VDC, 15mm Range, Red Light, Light On, NO, PNP Output, 2m PUR Cable, IP67, 25.5 x 12 x 4.1mm (HWD), OBT Series
$138.88$138.88 -
Pepperl+Fuchs
253572
Photoelectric DuraBeam Laser Triangulation Sensor with Background Suppression (BGS), Flat Design, Space Saving M2 Mounting, 12-24VDC, 15mm Range, Red Light, Light On, PNP Output, 2m PUR Cable, IP67, 25.5 x 12 x 4.1mm (HWD), OBT Series
$199.36$199.36 -
$367.36$367.36 -
Pepperl+Fuchs
254271
Photoelectric Retroreflective Sensor, Pulse Ranging Technology (PRT), 10-30VDC, 0-50m Detection Range, M12 4-Pin Connector, 88H x 25.8W x 54.3Dmm, IP67, Returns of This Item Must Be Approved by Manufacturer
$356.16$356.16 -
Pepperl+Fuchs
257817
Photoelectric Retroreflective Sensor, Polarization Filter, Ø12mm Cylindrical M12 Threaded Housing Design, Metal Housing, Front Optical Face, 10-30VDC, 2.5m Detection Range, Red Light, Light/Dark On, 1 NPN Output, 2m Cable, IP67, Returns of
$132.16$132.16 -
Pepperl+Fuchs
257818
Photoelectric Retroreflective Sensor, Polarization Filter, Ø12mm Cylindrical M12 Threaded Housing Design, Metal Housing, Front Optical Face, 10-30VDC, 2.5m Detection Range, Red Light, Light/Dark On, 1 NPN Output, M12 4-Pin Plug, IP67, Retur
$132.16$132.16
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