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Baumer
OZDK 10P5101/S35A
Diffuse Contrast Sensor-Miniature, 3...150 mm Sensing Distance, Pulsed Red Laser Diode, PNP, 5 Turn Potentiometer, M8 connector (4 Pin), IP 67
$954.60$954.60 -
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 -
Available Now! 
$141.18$141.18 -
$105.00$105.00 -
$300.00$300.00 -
Pepperl+Fuchs
70112346
Detection Sensor, 2-D Laser Scan, 0.1-30m, IP67, 30 Hz Scan Frequency, 4 Input/Output
$4,503.52$4,503.52 -
Pepperl+Fuchs
70141930
Photoelectric DuraBeam Laser Triangulation Sensor, Background Suppression (BGS), Laser Diode, 12-24VDC, 20-80mm Range, NO, PNP, 45° Cable Outlet, 200mm PUR Cable with M8 x 1, 4-Pin Connector, IP67, 24 x 7.5 x 11.2mm (HWD), OBT Series, Retur
$201.60$201.60 -
Pepperl+Fuchs
70141932
Photoelectric DuraBeam Laser Triangulation Sensor, Background Suppression (BGS), Laser Diode, 12-24VDC, 20-80mm Range, NO, PNP, 45° Cable Outlet, 200mm PUR Cable with M8 x 1, 4-Pin Connector, IP67, 26 x 7.5 x 13.8mm (HWD), OBT Series, Retur
$201.60$201.60 -
Pepperl+Fuchs
912568
Luminescence Sensor, 190mm Sensing, Discrete Output, Returns of This Item Must Be Approved by Manufacturer
$1,319.36$1,319.36 -
Autonics
BC15-LDT-C-P
Color Mark Sensor, PNP, 15mm Sensing, RGB with 12-Bit Resolution, 1.24W x 6.7L mm Spot Size, IP67
$228.75$228.75 -
Autonics
BH300-DDT
Photoelectric, Diffuse Reflective, 300m, 12-24VDC, NPN/PNP, IP67, Front or Side Mount, Compact, Red LED
$80.00$80.00
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