-
$2,680.80$2,680.80 -
Pepperl+Fuchs
018937
Fiber Optic Sensor, 10-30VDC, 600mm Detection Range, Light/Dark On, PNP, 30H x 30W x 102Dmm, IP67
$560.70$560.70 -
Baumer
11001311
Photoelectric Sensor, Retro-Reflective, 4.5m Sensing Range, PNP, M8 4-Pin Connector, IP67
$1,151.49$1,151.49 -
Baumer
11001315
Photoelectric Sensor, Retro-Reflective, 10m Sensing Range, PNP, M8 4-Pin Connector, IP67
$966.60$966.60 -
Pepperl+Fuchs
117302
Safety Thru-Beam Sensor, Transmitter, 0.2-10m Effective Detection Range, LED, 660nm Light Source, Power Supply via Control Unit, Operation on Control Units of SB4 (SafeBox), M12 5-Pin 90° Rotatable Connector, IP67, Returns are subject to Ma
$231.84$231.84 -
Pepperl+Fuchs
117304
Safety Thru-Beam Sensor, Receiver, 0.2-10m Effective Detection Range, LED, 660nm Light Source, Power Supply via Control Unit, Operation on Control Units of SB4 (SafeBox), M12 5-Pin 90° Rotatable Connector, IP67, Returns Subject to Manufactu
$296.10$296.10 -
Pepperl+Fuchs
118431
Safety Thru-Beam Sensor (Emitter), Plastic, M12 4-Pin Connector, IP67 for Operation on SB4 Series Control Units (SafeBox), Returns of This Item Must Be Approved by Manufacturer
$221.04$221.04 -
Pepperl+Fuchs
118433
Machine Safety Photoelectric Sensor, Safety Thru-Beam Sensor, Emitter: SLA29-T/116, 0.2 to 30m Detection Range (40m Threshold Range), ABS Plastic, RLA 1021 (Yellow) Painted, Terminal Compartment Connection, IP67, Returns of This Item Must Be Approved
$267.12$267.12 -
Pepperl+Fuchs
118435
Machine Safety Thru-Beam Photoelectric Sensor (Receiver), Plastic, M12 4-Pin Connector, IP67 for Operation on SB4 Series Control Units (SafeBox), Returns of This Item Must Be Approved by Manufacturer
$301.65$301.65 -
Pepperl+Fuchs
118437
Machine Safety Photoelectric Sensor, Safety Thru-Beam Sensor, Receiver: SLA29-R/116, LED Functional Display and Pre-Fault Indicator on the Receiver, 0.2 to 30m Detection Range, (40m Threshold Range), ABS Plastic, RLA 1021 (Yellow) Painted, Terminal
$313.88$313.88 -
Pepperl+Fuchs
132616
Print Mark Contrast Sensor, Diffuse Mode, 10-30VDC, 11mm ± 2 mm Range, Teach-In, Light/Dark On, 2 Push-Pull O/P, M12 5 Pin, Nickel Plated Die-Cast Zinc, Plastic Optics, -20 to 60°C Ambient Temp., 41.5 x 49 x 15mm (WHD), IP67
$501.76$501.76 -
Pepperl+Fuchs
183439
Photoelectric, Light On/Dark On, Diffused, Backgr, 350mm Sensing, Background Suppression
$357.28$357.28
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