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Available Now! 
Available Now!Takex
NA-R10
Photoelectric Sensor, Power Supply, Diffuse, Reflective, Relay, IP66, Terminal Block, 1M, Range
$123.25$123.25 -
Available Now! 
Available Now!Takex
NA-R10F
Diffuse Reflective Sensor, 24-240VAC/DC ±10% 50/60Hz Power Supply, 1m or Less Range (200x200mm White Drawing Paper), Opaque Translucent Detection Object, Relay Output 1a, Light ON/Dark ON Selectable, Timer Function Selectable, Delay Time: 0
$133.88$133.88 -
Autonics
BX700-DFR
Diffuse Reflective Sensor, 24-240VAC/DC, 700mm Sensing Distance, Opaque/Translucent Target, Infrared LED (940nM), Light On/Dark On Selectable, Relay Contact Output, Terminal Block Connection Type, IP66
$109.76$109.76 -
Autonics
BEN300-DDT
Photoelectric Sensor, Diffuse Reflective, 300mm, DC Voltage, Solid-State Output (Transistor)
$75.04$75.04 -
Takex
GS20RN-Y6J
Diffuse Reflective Sensor, 12-24VDC, Infrared LED, 300mm Range, NPN, Light On/Dark On Selectable, 2m Black Cable with Flying Lead, IP67
$154.28$154.28 -
Available Now! 
Available Now!Pepperl+Fuchs
909112
Photoelectric, Light On/Dark On, Diffuse Mode, IP67, 150mm Cable, 10-450mm
$132.16$132.16 -
Takex
GS20RN
Photoelectric Sensor, Diffuse Reflective, NPN, Infrared LED, 300mm Range, 12/24VDC, Cable
$112.20$112.20 -
$100.10$100.10 -
Autonics
BRQM400-DDTA
Photoelectric Sensor, Diffuse Reflective, Metal Body, 10-30VDC, 400mm Sensing Distance, Light & Dark On, NPN Output
$100.10$100.10 -
Available Now! 
Available Now!Carlo Gavazzi
EO1804PPAS-1
Photoelectric Diffuse Reflective Sensor, M18, 10-40VDC, 400mm Range, PNP, 4-Wire Complementary, NO/NC, M12 Plug, Modulated, Infrared Light 880nm, LED Indication, IP67
$106.80$106.80 -
$106.40$106.40 -
Takex
GS20N
Photoelectric Sensor, Diffuse Reflective, NPN, Infrared LED, 200mm Range, 12/24VDC, Cable, IP67, Head-On
$112.20$112.20
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