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Leuze
FT5.3/4P
Photoelectric Energetic Diffuse Reflection Sensor, LED, ABS Plastic Housing, 10-30VDC, 0.001-0.215m Range, 100mA, PNP, Light/Dark Switching, Teach Button, 2m PUR Cable, 32.5H x 14W x 20.2Lmm, IP67, Series 5, NCNR
$194.25$194.25 -
Takex
GN-R7CPN-J
Photoelectric Sensor, Diffuse Reflective, PNP, Infrared LED, Light/Dark, 70mm Range, M8 Connector
$87.55$87.55 -
Takex
GS20PN
Photoelectric Sensor, Diffuse Reflective, PNP Infrared LED, 200mm Range, 12/24VDC, Cable, IP67
$123.25$123.25 -
Takex
GS20RSPN
Photoelectric Sensor, Diffuse Reflective, PNP, Infrared LED, 400mm Range, 12/24VDC, 6MCable
$123.25$123.25 -
Takex
GS5N
Photoelectric Sensor, Diffuse Reflective, NPN, Infrared LED, 70mm Range, 12/24VDC, Cable, IP67
$112.20$112.20 -
Available Now! 
Available Now!Takex
GS5SN
Photoelectric Sensor, Diffuse Reflective, NPN, Infrared LED, 70mm Range, 12/24VDC, Cable, IP67
$112.20$112.20 -
Takex
GSR05RN
Photoelectric Sensor, Diffuse Reflective, NPN, Head On, Red LED, 500mm Range, 12/24VDC, Attached Cable, IP67
$108.80$108.80 -
Takex
GSR05RSN
Photoelectric Sensor, Diffuse Reflective, NPN, Side On, Red LED, 500mm Range, 12/24VDC, Attached Cable, IP67
$113.90$113.90 -
Takex
GSR05RSPN-N
Photoelectric Sensor, Diffuse Reflective, PNP, Red LED, 500mm Range, 12/24VDC, M8 Connector, IP67
$117.73$117.73 -
Baumer
O500.ZR-GW1T.72CU
Diffuse Sensor with Intensity Difference, 10-30VDC, 20-600mm Range Tw, Pulsed Red LED, 630 nm, Push-Pull, qTeach, Light/Dark Operate, 2m 4-Pin Cable, Plastic Housing, PMMA Front (Optics), 45 x 18 x 32mm (HWD), -25 to 60°C Operating Temperature, IP67
$201.80$201.80 -
Baumer
O500.ZR-GW1T.72O
Diffuse Sensor with Intensity Difference, 10-30VDC, 20-600mm Sensing Distance Tw, Pulsed Red LED, 630 nm, Push-Pull, qTeach, Light/Dark Operate, M12 4-Pin Connector, Plastic Housing, PMMA Optics, 45 x 18 x 32mm (HWD), -25 to 60°C Operating
$181.80$181.80 -
Carlo Gavazzi
PA18ALD04TOSA
Photoelectric Diffuse Reflective Sensor, Ø18mm, 20-250VAC, 400mm Range, SCR NO, Needs M12 Cable, IP67
$147.92$147.92
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