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Available Now! 
Available Now!Carlo Gavazzi
PA18CAR65PAM1SA
Minimum Order 5 Pieces, Price per Piece
Photoelectric, Retro-Reflective, M18 Axial, 10-30VDC, 6.5m Range, PNP NO/NC, M12 Plug
$71.13$71.13 -
Available Now! 
Available Now!Carlo Gavazzi
PA18CAR65PASA
Minimum Order 1 & Advertised Pricing is Limited to Available Stock Only! Then the Minimum will be 5 Pieces. | Limited Stock Savings: 1 unit available at this price
Photoelectric, Retro-Reflective, M18 Axial, 10-30VDC, 6.5m Range, PNP NO/NC, 2m Cable
$51.32$51.32 -
Available Now! 
Available Now!Takex
DL-S100TC
Photoelectric Sensor, Background Suppression, NPN/PNP, Red LED, Terminal Block, Long Distance
$186.15$186.15 -
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Available Now!Takex
DL-S100R
Photoelectric Sensor, Fixed Field Reflective, NPN/PNP, Red LED, Cable, Long Range
$194.65$194.65 -
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Available Now!Takex
F85RN
Replacement for F1, F10, F11, F5, F7, F80 Series
Fiber Optic Sensor, Dual Display, 12-24VDC, NPN/PNP, Dark On/Light On, M8 Connector, 0.065 - 4.000ms Response Time, IP40, Replacement for F1, F10, F11, F5, F7, F80 Series. Please review specifications for your application.
$120.28$120.28 -
Available Now! 
Available Now!Autonics
BX5M-MFR-T
Limited Stock Savings: 4 units available at this price
Photoelectric Sensor, Retroreflective, 0.1-5m, with Timer
$106.87$106.87 -
Available Now! 
Available Now!Autonics
BEN10M-TDT
Photoelectric Sensor, Thru-Beam, Compact, 10m, DC Voltage, Solid-State Output (Transistor)
$79.00$79.00 -
Available Now! 
Available Now!Autonics
BEN5M-MFR
Photoelectric Sensor, Retroreflective, 0.1-5m, Free Power, Contact Output (Relay)
$76.00$76.00 -
Available Now! 
Available Now!Autonics
BEN3M-PDT
Limited Stock Savings: 1 unit available at this price
Photoelectric Sensor, Polarized Retroreflective, 0.1-3m, DC Volt, Solid-State Output (Transistor)
$68.05$68.05 -
Available Now! 
Available Now!Baumer
FHDK 04G6101
10162790
Subminiature Diffuse Sensor, Background Suppression (BGS), Pulsed Point Source LED, 30mm ±2mm Range Tw, 11-30VDC, Light Operate, Push-Pull, <50mA, 2m 3-Pin Cable, 44.8 x 4 x 6.2mm (HWD), Plastic (ASA) Housing, PMMA Optics, -10 to 50°C, IP65
$399.49$399.49 -
Available Now! 
Available Now!Baumer
FHDK 04G6102/KS35A
10162787
Subminiature Diffuse Sensor with Background Suppression (BGS), Pulsed Point Source LED, 50mm Tw Range, 11-30VDC, Light Operate, Push-Pull, 50mA, 200mm Flylead Connector M8 4-Pin, 44.8 x 4 x 6.2mm (HWD), ASA Housing, PMMA Optics, -10 to +50°C, IP65
$410.80$410.80 -
Available Now! 
$409.44$409.44
Photoelectric sensors detect the distance, absence or presence of an object. These sensors are great for sensing long distances and detecting most materials.
Additional Sensor Categories:
Proximity | Ultrasonic | Pressure | Temperature | Level | Tilt
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