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$94.00$94.00 -
Leuze
50137598
Diffuse Sensor with Background Suppression, 0.005-0.2m, LED, Red, Connector, M8, Metal, 3-Pin, NCNR
$238.00$238.00 -
Leuze
50139552
Polarized Retroreflective Sensor, 10-30VDC, 12m Range Limit with Reflector TK(S) 100x100, 2 Switching O/P 1: Push-Pull Light PNP/Dark NPN + O/P 2: Push-Pull Dark PNP/Light NPN, 0.1m PUR Cable with M8 Male 4-Pin Connector, ECOLAB, 25C Series
$177.00$177.00 -
Leuze
50144967
Diffuse Sensor with Background Suppression, 10-30VDC, 0.005-0.45m Range, Focused Beam, Red LED, 633nm, 2 Switching O/P 1: NPN Light, O/P 2: NPN Dark, 0.2m Black PUR Cable, M12 Male 4-Pin A-Coded Metal Connector, ECOLAB, IP67/69K, 3C Series
$227.00$227.00 -
$169.00$169.00 -
Pepperl+Fuchs
70112342
Detection Sensor, 2-D Laser Scan, 0.2-10m, IP65, 30 Hz Scan Frequency, PRT, 4 Input/Output, Returns of This Item Must Be Approved by Manufacturer
$4,115.10$4,115.10 -
Pepperl+Fuchs
70112345
Detection Sensor, 2-D Laser Scan, 0.1-30m, IP65, 30 Hz Scan Frequency, High Angle Resolution
$4,263.17$4,263.17 -
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 -
$82.88$82.88 -
Available Now! 
$82.88$82.88
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