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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 -
$114.65$114.65 -
Carlo Gavazzi
PMT20RI
Photoelectric Thru-Beam Sensor, Receiver without Timer, 1/2 "NPT Cable Gland, Range up to 20m
$211.85$211.85 -
Leuze
PRK25C/4P-M8
Polarized Retroreflective Sensor, 10-30VDC, 0.05-12m Range Limit with Reflector TK(S) 100X100, Red LED, 640nm, PNP, Light/Dark Switching, M8 Male 4-+Pin PUR Connector, 15 x 42.7 x 30mm (WHL), Plastic Housing/Lens, ECOLAB, IP67/69K
$174.27$174.27 -
Leuze
PRK28/2N-M12
Polarized Retroreflective Sensor, 10-30VDC, 0.02-6m Range Limit with Reflector TK(S) 100x100, Red LED, 620nm, NPN, Light/Dark Switching, M12 Male 4-Pin A-Coded Connector, 15 x 46.5 x 31.8mm (WHL), ABS Body/Plastic Lens, -40 to +60C, IP67
$112.11$112.11 -
Leuze
PRK28/4P-200-M12
Polarized Retroreflective Sensor, 10-30VDC, 0.02-6m Range Limit with Reflector TK(S) 100x100, Red LED, 620nm, PNP, Light/Dark Switching, 0.2 PUR Cable & M12 Male 4-Pin A-Coded Connector, 15 x 46.5 x 31.8mm (WHL), ABS Body/Plastic Lens, IP67
$104.09$104.09 -
Leuze
PRK318B/2N-M12
Polarized Retroreflective Sensor, 10-30VDC, 0.02-6m Range Limit with Reflector TK(S) 100x100, Red LED, 620nm, NPN, Light/Dark Switching, M12 Male 4-Pin A-Coded Connector, 18 x 46mm, ABS Housing, Plastic Face, -40 to +60C, IP67
$103.23$103.23 -
Leuze
PRK5B/2X-M8
Polarized Retroreflective Sensor, 10-30VDC, 0.02-6.5m with Reflector (TK(S) 100x100, Red LED, 645nm, NPN Light Switching (Dark Switching by Reversing Polarity), M8 Male 4-Pin Connector, 11 x 32.4 x 20mm (WHL), ECOLAB, IP67, 5B Series
$92.13$92.13 -
Leuze
PRK5B/4
Polarized Retroreflective Sensor, 10-30VDC, 0.02-6.5m with Reflector (TK(S) 100x100, Red LED, 645nm, PNP Light Switching (Dark Switching by Reversing Polarity), 2m PVC Cable/M3 Thread Sleeves, 11 x 32.4 x 20mm (WHL), ECOLAB, IP67, 5B Series
$92.13$92.13 -
Leuze
PRK5B/4X-200-M8
Polarized Retroreflective Sensor, 10-30VDC, 0.02-6.5m with Reflector (TK(S) 100x100, Red LED, 645nm, PNP Light Switching (Dark Switching by Reversing Polarity), 0.2m PVC Cable/M8 Connector, 11 x 32.4 x 20mm (WHL), ECOLAB, IP67, 5B Series
$99.90$99.90 -
$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