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Available Now! 
Available Now!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
$79.00$79.00 -
Pepperl+Fuchs
295670-100058
Photoelectric Sensor, Diffuse, 1.4m, LED, 10-30VDC, 4-in-1 Output, IO-Link, M12, Returns of This Item Must Be Approved by Manufacturer
$154.56$154.56 -
Leuze
50144967
Diffuse Sensor with Background Suppression, 10-30VDC, 0.005-0.45m Range, Focused Beam, Red LED, 633nm, 2 Switching O/P 1: NPN Light, O/P 2: NPN Dark, 0.2m Black PUR Cable, M12 Male 4-Pin A-Coded Metal Connector, ECOLAB, IP67/69K, 3C Series
$207.49$207.49 -
Carlo Gavazzi
EO1804NPAS-1
Photoelectric DIffuse Reflective Sensor, 400mm Range, infrared Modulated Light 880nm, 10-40VDC Power Supply, NPN, NO+NC, M12 Plug
$144.85$144.85 -
Carlo Gavazzi
ER1830NPAS-1
Photoelectric Retroreflective Ø18 Sensor, Infrared 10-40VDC, 3m Range, NPN, M12 Plug
$144.85$144.85 -
Baumer
FHDK 14N5101/S14
Diffuse Sensor, Background Suppression (BGS), Pulsed Red LED, 20-350mm Range Tw, Mech. 10-Turn Adj., 10-30VDC, Light/Dark Operate, NPN, <100mA, M12 4-Pin Connector, 43 x 14.8 x 31mm HWD, Plastic Housing, PMMA Optics, -25 to +65°C, IP67
$355.69$355.69 -
Baumer
FHDK 14N5104/S14
Diffuse Sensor, Background Suppression (BGS), Pulsed Red LED, 30-500mm Range Tw, Mech. 10-Turn Adj., 10-30VDC, Light/Dark Operate, NPN, <100mA, M12 4-Pin Connector, 43 x 14.8 x 31mm HWD, Plastic Housing, PMMA Optics, -25 to +65°C, IP67
$343.60$343.60 -
Baumer
FHDK 14N6901/S14
Diffuse Sensor, Background Suppression (BGS), Pulsed Red LED, 40-200mm Range Tw, Teach-In Sensing Adj., 10-30VDC, Light/Dark Operate, NPN, <100mA, M12 4-Pin Connector, 43 x 14.8 x 31mm (HWD), Plastic Housing, PMMA Optics, -25 to +65°C, IP67
$508.40$508.40 -
Baumer
FPDK 14N5101/S14
Retroreflective Sensor, Standard, Pulsed Red LED, 10-30VDC, 7m Actual Range Sb, 7.2m Nominal Range Sn, NPN, Light/Dark Operate, M12 4-Pin Connector, 43 x 14.8 x 31mm (HWD), Plastic (ASA, MABS) Housing, PMMA Optics, -20° to +65°C, IP67
$235.09$235.09 -
Baumer
FPDK 14N5111/S14
Retroreflective Sensor, Standard, Pulsed Red LED, 10-30VDC, 3.2m Actual Range Sb, 3.8m Nominal Range Sn, NPN, Light/Dark Operate, M12 4-Pin Connector, 43 x 14.8 x 31mm (HWD), Plastic (ASA, MABS) Housing, PMMA Optics, -20° to +65°C, IP67
$466.20$466.20
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