-
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NA-R10
Photoelectric Sensor, Power Supply, Diffuse, Reflective, Relay, IP66, Terminal Block, 1M, Range
$123.25$123.25 -
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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 -
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NA-M7RF
Polarized Retroreflective Sensor, 24-240VAC/DC Power Supply, 0.03 to 7mm Range, Mirror-Like Opaque Detection, Relay Ouput 1a, Light ON/Dark ON Selectable, Timer Function Selectable, Delay Time: 0.1-5 s, Terminal Block (M3.5 Screw), IP66
$136.85$136.85 -
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$110.00$110.00 -
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NA-M7R
Photoelectric Polarized Retroreflective Sensor, 24-240VAC/DC Power Supply, 0.03 to 7m Range, Mirror-Like Opaque Detection, Relay Output 1a, Light ON/Dark ON Selectable, No Timer, Terminal Block (M3.5 Screw), IP66
$126.65$126.65 -
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
$98.00$98.00 -
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NA-T20RF
Photoelectric Sensor, Power Supply, Thru-Beam, Relay, Red LED, 20000mm Range, Terminal Block
$119.50$119.50 -
Takex
NA-T20R
Photoelectric Sensor, Power Supply, Thru-Beam, Relay, Red LED, 20000mm Range, Terminal Block
$168.73$168.73 -
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DL-S100R
Photoelectric Sensor, Fixed Field Reflective, NPN/PNP, Red LED, Cable, Long Range
$194.65$194.65 -
$208.00$208.00 -
Autonics
BR20M-TDTL-C
Photoelectric Sensor, Thru-Beam, 20m Range, 18mm Round Brass, Light On, NPN Output, Connector Type, 12-24VDC
$90.53$90.53 -
$120.00$120.00
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