-
Available Now! 
Available Now!Takex
GSM2RSN
Photoelectric Sensor, Polarized Reflective, NPN, Red LED, 2000mm Range, 12/24VDC, 2M Cable
$124.53$124.53 -
Pepperl+Fuchs
188559
Photoelectric Retroreflective Sensor, DC, Front Optical Face, Light ON/Dark ON, Polar Filter
$126.00$126.00 -
Available Now! 
Available Now!Baumer
FHDK 14P5101/S14
Diffuse Sensor, Background Suppression (BGS), Pulsed Red LED, 20-350mm Range Tw, Mech. 10-Turn Adj., 10-30VDC, Light/Dark Operate, PNP, <100mA, M12 4-Pin Connector, 43 x 14.8 x 31mm HWD, Plastic Housing, PMMA Optics, -25 to +65°C, IP67
$341.71$341.71 -
$154.51$154.51 -
Takex
GR12RN
Photoelectric Sensor, Convergent Reflective, NPN, Color Mark, Red LED, Cable, 12mm Range
$176.80$176.80 -
Available Now! 
Available Now!Takex
MC-U2GTC
Color Mark Sensor, NPN/PNP, 2mm, Thru-Beam, Green LED, U-Shaped, Light ON/Dark ON, IP67
$207.40$207.40 -
Takex
GS20RSN
Photoelectric, NPN, Diffuse Reflective, 400mm Rng, 12-24VDC, Light ON/Dark ON, 2m Cable, IP67
$119.43$119.43 -
Available Now! 
Available Now!Baumer
FHDK 14P5101/S35A
Diffuse Sensor, Background Suppression (BGS), Pulsed Red LED, 20-350mm Range Tw, Mechanical 10-Turn Adj., 10-30VDC, Light/Dark Operate, PNP, <100mA, M8 4-Pin Connector, 43 x 14.8 x 31mm(HWD), Plastic Housing, PMMA Optics, -25 to +65°C, IP67
$355.69$355.69 -
Available Now! 
Available Now!Baumer
FHDM 12N5001/S35A
Photoelectric Diffuse Sensor with Background Suppression, 10-30VDC, 15-300mm Sensing Range, Light/Dark Operate NPN, -25 to +65°C, M8 4-pin Connector, IP67
$461.40$461.40 -
Available Now! 
Available Now!Takex
GS20RN
Photoelectric Sensor, Diffuse Reflective, NPN, Infrared LED, 300mm Range, 12/24VDC, Cable
$103.55$103.55 -
Available Now! 
Available Now!Baumer
O300.GR-GW1T.72N
Diffuse Sensor, Background Suppression, Miniature, Pulsed Red LED, 10-30VDC, 30-300mm Sensing Distance Tw, qTeach, Push-Pull, Light/Dark Operate, M8 4-Pin Connector, 32.3 x 12.9 x 23mm (HWD), Rectangular, Plastic (ASA, PMMA) Housing, PMMA O
$178.49$178.49 -
Baumer
FHDK 10N5101/S35A
Miniature Diffuse Sensor, Background Suppression, Pulsed Red LED, 20-120mm Range Tw, Mech. 5-Turn Adj., 10-30VDC, Light/Dark Operate, NPN, <100mA, M8 4-Pin Connector, 27 x 10.4 x 14mm (HWD), Plastic ASA Housing, PMMA Optics, -25 to +65°C, I
$446.09$446.09
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