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Baumer
OZDK 14N1901/S14
Diffuse Contrast Sensor-Standard, 20...300 mm Sensing Distance, Pulsed Red Laser Diode, NPN, Teach-in Adjustment, M12 Connector (4 Pin), IP 67
$868.20$868.20 -
IDEC
S8-PR-3-T51-PP
Photoelectric, Laser Emmission, 1m Range, Retro-reflective for transparent, NCNR
$206.72$206.72 -
Available Now! 
$397.52$397.52 -
Carlo Gavazzi
VP02-110TB
Photoelectric Optical Level Sensor, 110VAC NO, AC Output, Polysulphone Housing
$178.83$178.83 -
Pepperl+Fuchs
198052
Photoelectric Slot Sensor, 10-30VDC, 0.3mm Target, 30mm/35mm Slot Width/Depth, Infrared Light, Light/Dark On Switch, PNP, M8 3 Pin Connector, Powder Coated Die-Cast Zinc, Glass Optics, -20 to +60°C Ambient Temperature, IP67
$318.08$318.08 -
Pepperl+Fuchs
216896
Photoelectric Triangulation Diffuse Reflective Sensor with Background Suppression, Miniature Design, 350mm Adjustable Range, Red Light, Light/Dark On, NPN Output, M8 4-Pin Plug
$182.56$182.56 -
Autonics
BH4M-PDT
Photoelectric, Retroreflective, 4m Sensing, 12-24V, NPN/PNP, IP67, Front or Side Mount, Compact
$92.00$92.00 -
Takex
DLN-S5RVP
Photo Sensor, 50mm, PNP, Short, BGS/FGS Selector, 12-24VDC, Light ON/Dark ON, w/2m Cable, IP67
$129.63$129.63 -
Baumer
FHDM 12N5001
Diffuse Sensor With Background Suppression-Miniature, 15...300 mm Sensing Distance, Pulsed Red LED, NPN, Mechanical (5 Turn), 2 Meter Cable Length (4 Pin), 10...30VDC, IP67
$476.40$476.40 -
Baumer
FPDK 10P5130/S35A
Retroreflective Sensor, Miniature, Pulsed Red LED, 10-30VDC, 3.5m Actual Range Sb, 4m Nominal Range Sn, PNP, Light/Dark Operate, M8 4-Pin Connector, 27 x 10.4 x 16.3mm (HWD), Plastic (ASA) Housing, PMMA Optics, -25° to +65°C, IP67
$237.09$237.09 -
Baumer
FPDK 14N5101/S35A
Retroreflective Sensor, Standard, Pulsed Red LED, 10-30VDC, 7m Actual Range Sb, 7.2m Nominal Range Sn, NPN, Light/Dark Operate, M8 4-Pin Connector, 43 x 14.8 x 31mm (HWD), Plastic (ASA, MABS) Housing, PMMA Optics, -25° to +65°C, IP67
$235.09$235.09 -
Baumer
FPDK 14P5111/S35A
Retroreflective Sensor, Standard, Pulsed Red LED, 10-30VDC, 3.2m Actual Range Sb, 3.8m Nominal Range Sn, PNP, Light/Dark Operate, M8 4-Pin Connector, 43 x 14.8 x 31mm (HWD), Plastic (ASA, MABS) Housing, PMMA Optics, -20° to +65°C, IP67
$466.20$466.20
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