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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
$337.05$337.05 -
Leuze
50129377
Diffuse Sensor with Background Suppression, 10-30VDC, 0.005-0.45m Range, Red LED, PNP, Light/Dark Switching, 0.2m Black PUR Metal Male 4-Pin Cable, M12, 11.4 x 34.2 x 18.3mm WHL, IP67/IP69K
$207.49$207.49 -
Leuze
50117930
Photoelectric Sensor Receiver, Throughbeam, PNP Transistor, Dark Switching, M 12 4-pin Conn., NCNR
$94.00$94.00 -
$95.03$95.03 -
$155.10$155.10 -
Baumer
OADM 20I5460/S14C
Photoelectric Distance Sensor, Laser Point, 30-130mm Range, Analog Output Signal: 4-20mA, 12-28VDC, 100mA, PNP, Quick Disconnect M12 5-pin Rotatable Connector, 0° to +50°C°, IP67, 65 x 20.6 x 50mm (HWD), OADM Series
$2,721.60$2,721.60 -
Pepperl+Fuchs
200958
Diffuse Reflective Sensor, 10-30VDC, 2-12mm Detection Range, PNP, NO, Light On, Teach-in, PC + ABS Housing, Scratch Resistant Mineral Glass Lens Optical Face, M12 5-pin Connector, IP67
$530.88$530.88 -
$105.00$105.00 -
$421.00$421.00 -
Leuze
50129393
Diffuse Sensor with Background Suppression, 0.015-0.4m, Laser, Red, PNP, Cable, M12, Metal, 4-Pin
$341.04$341.04 -
Leuze
50133691
Polarized Retro-Reflective Photoelectric Sensor, 0-0.5m, Laser, Red, PNP, Cable, M12, Metal, 4-Pin
$379.03$379.03 -
Leuze
50133700
Polarized Retroreflective Sensor, 10-30VDC, 0.5m Range Limit, Autocollimation, Red Laser, 655nm, PNP, Light/Dark, LED, Teach Button, 0.2m Cable M12 Connector, 11.4 x 34.2 x 18.3mm (WHL), PC-ABS with PMMA Lens, ECOLAB, -40 to +55C, IP67/69K
$379.03$379.03
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