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Baumer
FPDK 14N5111/S14
Retroreflective Sensor, Standard, Pulsed Red LED, 10-30VDC, 3.2m Actual Range Sb, 3.8m Nominal Range Sn, NPN, Light/Dark Operate, M12 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 -
Baumer
FPDK 14N5111/S35A
Retroreflective Sensor, Standard, Pulsed Red LED, 10-30VDC, 3.2m Actual Range Sb, 3.8m Nominal Range Sn, NPN, 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 -
Baumer
FPDK 20N5101/S35A
Retroreflective Sensor, Standard, Pulsed Red LED, 10-30VDC, 5.5m Actual Range Sb, 6.8m Nominal Range Sn, NPN, Light/Dark Operate, M8 4-Pin Connector, 42 x 20 x 15mm HWD Rectangle, Plastic (PBT-ASA) Housing, PMMA Optics, -20° to +65°C, IP67
$331.60$331.60 -
Baumer
FZAM 18N1155
Photoelectric Diffuse Sensor with Intensity Difference, Ø18 x 50mm, 10-30VDC, 20-150mm Range Tw, 30-280mm Range Tw with Doubling Lens, 200mA, NPN, Light Operate, Nickel Plated Brass Housing, Polycarbonate Front (Optics), 2m 3-Pin cable, IP65
$234.49$234.49 -
Takex
GMR2RN
Photoelectric Sensor, Amplifier, Thru-Beam, NPN, Red LED, IP67, Compact, Cable, 1500mm Range
$124.53$124.53 -
$126.65$126.65 -
Takex
GS5N
Photoelectric Sensor, Diffuse Reflective, NPN, Infrared LED, 70mm Range, 12/24VDC, Cable, IP67
$112.20$112.20 -
Available Now! 
Available Now!Takex
GS5SN
Photoelectric Sensor, Diffuse Reflective, NPN, Infrared LED, 70mm Range, 12/24VDC, Cable, IP67
$65.60$65.60 -
Takex
GSR05RN
Photoelectric Sensor, Diffuse Reflective, NPN, Head On, Red LED, 500mm Range, 12/24VDC, Attached Cable, IP67
$108.80$108.80 -
Available Now! 
Available Now!Takex
GSR05RSN
Photoelectric Sensor, Diffuse Reflective, NPN, Side On, Red LED, 500mm Range, 12/24VDC, Attached Cable, IP67
$113.90$113.90 -
Takex
GSZ3SPN
Photoelectric Sensor, Convergent Reflective, NPN, Infrared LED, 12/24VDC, 40mm Range, Cable, IP67
$135.58$135.58 -
$173.83$173.83
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