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Carlo Gavazzi
PH18CNR65PASA
Photoelectric Retroreflective Sensor, M18 Square Housing, 6500mm (6.5m) Range, Infrared Modulated Light 850nm, 10-30VDC Power Supply, PNP Output, NO/NC, Light and Dark Switching, 2m Grey PVC Cable, IP69K
$78.58$78.58 -
Carlo Gavazzi
PH18CNR65PAT1SA
Photoelectric Retroreflective Sensor, M18 Square Housing, 6500mm (6.5m) Range, Infrared Modulated Light 850nm, 10-30VDC Power Supply, PNP Output, NO/NC, Light and Dark Switching, M12 4-pin Grey PUR Pigtail, IP69K
$92.92$92.92 -
Carlo Gavazzi
PMP12RIM
Photoelectric Polarized Retroreflective Sensor, 12m Range, Polarized Red Modulated Light 660nm, Power Supply 24VDC&24VAC, Relay SPDT, NO+NC, Terminals, IP67
$244.01$244.01 -
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
$207.85$207.85 -
IDEC
S8-PR-5-T53-PP
Photoelectric, Laser Emmission, 2m Range, Retro-reflective for transparent, NCNR
$190.18$190.18 -
$132.07$132.07 -
IDEC
SA2E-PN3-2M
Miniature Photoelectric Polarized Retroreflective Sensor, Red LED, NPN, 5m Sensing Range (Depends on the Reflector), Opaque Detectable Object, 0.5ms, Single Turn Sensitivity Control, Light On/Dark On (Selectable), 2m Cable, IP67, –30 to +55
$43.13$43.13 -
IDEC
SA2E-PN3C
Miniature Photoelectric Polarized Retroreflective Sensor, 1.3 to 5m Sensing Range with Sensitivity Adjustment, NPN, Light On/Dark On (Selectable), M8 4-Pin Connector, IP67, 10.8 x 19.5 x 31.5mm (WDH) Excluding LEDs and Controls
$46.08$46.08 -
IDEC
SA2E-PP3-2M
Miniature Photoelectric Polarized Retroreflective Sensor, 1.3 to 5m Sensing Range with Sensitivity Adjustment, PNP, Light On/Dark On (Selectable), 2m Cable, IP67, 10.8 x 19.5 x 31.5mm (WDH) Excluding LEDs and Controls
$41.47$41.47 -
IDEC
SA2E-PP3C
Miniature Photoelectric Polarized Retroreflective Sensor, 1.3 to 5m Sensing Range with Sensitivity Adjustment, PNP, Light On/Dark On (Selectable), M8 4-Pin Connector, IP67, 10.8 x 19.5 x 31.5mm (WDH) Excluding LEDs and Controls
$46.08$46.08
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