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Pepperl+Fuchs
188552
Retroreflective Sensor, M18 Threaded, 10-30VDC, 6.5m Detection Range, NPN, Light On, 4 LED Indicators for 360° Visibility, M12 3-Pin x 1 Connector, PC Housing, PMMA Optical Face, -25 to +60°C (-13 to +140°F) Ambient Temperature, IP67, NCNR
$92.96$92.96 -
Pepperl+Fuchs
295670-100035
Photoelectric Retroreflective Laser Sensor, 25m, 10-30V, 4-Pin Output, IO-Link, M12
$226.24$226.24 -
Takex
GMR2RSN
Photoelectric Sensor, Amplifier, Diffuse, NPN, Red LED, IP67, Compact, Cable, 1500mm Range
$130.48$130.48 -
Available Now! 
Available Now!Pepperl+Fuchs
267075-0121
Photoelectric, DC, Retroreflective, Laser, 0.2 … 12 m, M8 Quick Disconnect
$42.30$42.30 -
Pepperl+Fuchs
267075-100425
Photoelectric Retroreflective Sensor with Polarization Filter for Clear Object Detection, Returns of This Item Must Be Approved by Manufacturer
$187.04$187.04 -
Pepperl+Fuchs
295670-100012
Photoelectric Retroreflective Sensor, Polarization Filter, LED, H85-2 Reflector Target, 10-30VDC, 0-15m Range, IO-Link, Smart Sensor Type 2.4, 2 Push-Pull 4-in-1 Signal Outputs, M12 x 1, 4-Pin 90° Rotatable Connector, IP67/69/69K, 50.6 x 15
$155.68$155.68 -
Leuze
50133738
Polarized Retro-Reflective Photoelectric Sensor, 0-3m, Laser, Red, PNP, Connector, M8, Metal, 3-Pin, NCNR
$368.52$368.52 -
Leuze
50137057
Polarized Retro-Reflective Photoelectric Sensor, 0-3.6m, LED, Red, PNP, Connector, M8, Metal, 3-Pin, NCNR
$245.31$245.31 -
Baumer
FPDK 07P6901/KS35A
Retroreflective Sensor, Subminiature, Pulsed Red LED, 10-30VDC, 0.6m Actual Range Sb, 0.8m Nominal Range Sn, Teach-in, PNP, Light/Dark Operate, M8 4-Pin Flylead Connector (200mm Length), 17.8 x 8 x 12.6mm HWD, Plastic Housing, PMMA Optics,
$328.90$328.90 -
Baumer
FPDK 10N5135/S35A
Retroreflective Sensor, Miniature, Pulsed Red LED, 10-30VDC, 3.5m Actual Range Sb, 4m Nominal Range Sn, Potentiometer, 240°, NPN, Light/Dark Operate, M8 4-Pin Connector, 27 x 10.4 x 16.3mm (HWD), Plastic ASA Housing, PMMA Optics, -20° to +6
$279.60$279.60 -
Takex
GSM2RSPN
Photoelectric Sensor, Polarized Reflective, PNP, Red LED, .01 to 2m Range, 12/24VDC, Cable, IP67, Side-On
$130.05$130.05 -
Pepperl+Fuchs
267075-0122
Photoelectric DuraBeam Laser Retroreflective Sensor, 10-30VDC, 0-12m Detection Range, IO Link, M8 4-Pin Connector, 41.4H x 13.9W x18.3Dmm, IP67/69/69K, Returns of This Item Must Be Approved by Manufacturer
$188.16$188.16
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