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Autonics
BM1M-MDT
Photoelectric Sensor, Retroreflective, 0.1-1m, Opaque Material (Min Ø60mm), 12-24VDC
$73.00$73.00 -
$73.00$73.00 -
$103.16$103.16 -
Carlo Gavazzi
EP1820PPAS-1
Photoelectric Polarized Retroreflective Sensor, Red Polarized Modulated Light 660nm, 270° Single Turn Potentiometer, 10-40VDC Power Supply, 2m Range, PNP Output, NO/NC, Light and Dark Switching, M12 Quick Disconnect Plug, IP67
$178.61$178.61 -
Carlo Gavazzi
ER1830NPAS-1
Photoelectric Retroreflective Ø18 Sensor, Infrared 10-40VDC, 3m Range, NPN, M12 Plug
$144.85$144.85 -
Carlo Gavazzi
ER1830PPAS-1
Photoelectric Retroreflective Sensor, M18, Modulated, Infrared Light 880nm, 10-40VDC, 3m Range, PNP, NO/NC, Light and Dark Switching, M12 Plug
$144.85$144.85 -
Baumer
FPAM 18N3151
Retroreflective Sensor, Polarization Filter, Pulsed Red LED, 10-30VDC, 3.2m Actual Range Sb, 4m Nominal Range Sn, NPN, Dark Operate, 2m 3-Pin Cable, 18 x 57mm WH, Cylindrical Threaded, Brass Nickel Plated/PC Housing, PMMA Optics, -25 to +55
$369.80$369.80 -
Baumer
FPAM 18N3151/S14
Retroreflective Sensor, Polarization Filter, Pulsed Red LED, 10-30VDC, 3.2m Actual Range Sb, 4m Nominal Range Sn, NPN, Dark Operate, M12 4-Pin Connector, 18 x 67mm WH, Cylindrical Threaded, Brass Nickel Plated/PC Housing, PMMA Optics, -25 t
$347.69$347.69 -
Baumer
FPAM 18P3151
Retroreflective Sensor, Polarization Filter, Pulsed Red LED, 10-30VDC, 3.2m Actual Range Sb, 4m Nominal Range Sn, PNP, Dark Operate, 2m 3-Pin Cable, 18 x 57mm WH, Cylindrical Threaded, Brass Nickel Plated/PC Housing, PMMA Optics, -25 to +55
$369.80$369.80 -
Baumer
FPAM 18P5151/S14
Retroreflective Sensor, Polarization Filter, Pulsed Red LED, 10-30VDC, 3.2m Actual Range Sb, 4m Nominal Range Sn, PNP, Dark Operate, M12 4-Pin Connector, 18 x 67mm WH, Cylindrical Threaded, Brass Nickel Plated/PC Housing, PMMA Optics, -25 t
$414.00$414.00 -
Baumer
FPCK 07N6901
Retroreflective Sensor, Polarization Filter, Subminiature, Pulsed Red LED, 10-30VDC, 0.6m Actual Range Sb, 0.8m Nominal Range, Teach-in, NPN, Light/Dark Operate, 2m Cable Rear Side, 17.8 x 8 x 12.6mm Rectangular HWD, Plastic Housing, PMMA O
$306.60$306.60 -
Baumer
FPCK 07N6901/KS35A
Retroreflective Sensor, Polarization Filter, Subminiature, Pulsed Red LED, 10-30VDC, 0.6m Actual Range Sb, 0.8m Nominal Range, Teach-in, NPN, Light/Dark Operate, M8 4-Pin Flylead Connector (200mm Length), 17.8 x 8 x 12.6mm Rectangular HWD,
$317.40$317.40
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