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$339.20$339.20 -
Carlo Gavazzi
PA18CLD04TOSA
Photoelectric Diffuse Reflective Sensor, Ø18mm, 20-250VAC, 400mm Adj Range, SCR NO, 2m Cable
$136.99$136.99 -
Carlo Gavazzi
PC50CND10RP
Photoelectric Diffuse Reflective Sensor, Square, 12-240VDC and 24-240VAC, 50/60Hz, 1m Range, SPDT NO/NC, 2m PVC Cable, Modulated, Infrared Light 880nm, IP67, 17W x 50H x 50Dmm
$163.73$163.73 -
Carlo Gavazzi
PC50CNP06RP
Photoelectric Polarized Retroreflective Sensor, Square, 12-240VDC and 24-240 VAC, 50/60Hz, 6m Range, SPDT NO/NC, Light and Dark Switching, 2m Cable, Red Polarized Modulated Light 660nm, PC/ABS Housing
$184.85$184.85 -
Carlo Gavazzi
PC50CNT20R
Photoelectric Thru-Beam Sensor, Emitter, Square, 12-240VDC and 24-240VAC, 50-60Hz, 20m Range, SPDT NO/NC, 2m Grey PVC Cable, Adjustable Sensitivity, Modulated, Infrared Light 880nm, IP67, 17W x 50H x 50Dmm
$140.47$140.47 -
Carlo Gavazzi
PC50CNT20RP
Photoelectric Thru-Beam Sensor, Receiver, Square, 12-240VDC and 24-240VAC, 50-60Hz, 20m Range, SPDT NO/NC, 2m Grey PVC Cable, Adjustable Sensitivity, Modulated, Infrared Light 880nm, IP67, 17W x 50H x 50Dmm
$205.24$205.24 -
Carlo Gavazzi
PE12CNT15
Photoelectric Throughbeam Emitter, 15m Range, Infrared Modulated Light 880nm, 10-30VDC Power Supply, 5m Cable, ESPE Type 2, EN12445, EN12453, EN12978, UL325, UL508
$66.61$66.61 -
Carlo Gavazzi
PMP12RIM
Photoelectric Polarized Retroreflective Sensor, 12m Range, Polarized Red Modulated Light 660nm, Power Supply 24VDC&24VAC, Relay SPDT, NO+NC, Terminals, IP67
$241.87$241.87 -
Carlo Gavazzi
PMR10RI
Photoelectric Retroreflective Sensor, 12-240VDC and 24-240VAC, 50-60Hz, 10m Range, SPDT NO/NC, Modulated, Infrared Light 880nm, 1/2" NPT Cable Gland, Screw Terminal Connection, IP67, 25 x 65 x 81mm Reinforced PC Housing
$206.03$206.03 -
$112.97$112.97 -
Carlo Gavazzi
PMT20RI
Photoelectric Thru-Beam Sensor, Receiver without Timer, 1/2 "NPT Cable Gland, Range up to 20m
$210.03$210.03 -
$775.63$775.63
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