-
Leuze
50127045
LS46C.8-M12, Non-Cancellable / No Returns
Photoelectric Sensor Transmitter, Throughbeam, 0-150m, LED, Red, Connector, M12, Plastic, 4-Pin, NCNR
$147.00$147.00 -
Leuze
50127034
LE46C/4P, Non-Cancellable / No Returns
Photoelectric Sensor Receiver, Throughbeam, 0-150m, Cable, 2,000mm, 4-Wire, NCNR
$191.00$191.00 -
$134.73$134.73 -
Takex
GTHN615V
Fiber Optic Cable, Thru Beam, Flange Connection, Vacuum Proof, M4, Threaded, 1.5M Length
$1,006.83$1,006.83 -
Takex
GT7SPN
Mini-G Series
Photoelectric Sensor, Thru-Beam, NPN, Infrared LED, 12/24VDC, 7000mm Range, Cable
$166.60$166.60 -
Takex
AS-U30PN
Photoelectric Sensor, Thru-Beam, U Shape, PNP, 30mm Fixed, 5mm Dia, Infrared LED, Cable
$140.68$140.68 -
Takex
FU712BC
Fiber Optic Cable, Thru-Beam, U Shaped Head, 2M, On Head, With 12mm Range, Long Distance
$178.93$178.93 -
Takex
JR07
Diffuse Reflective Sensor, 24-240VAC/DC ±10? 50/60Hz Power Supply, 700mm (200-mm Square White Drawing Paper), Translucent Opaque Detection Object, Relay Output 1a, Light ON/Dark ON Selectable Switch (Integrated on Bottom of Sensor Unit), Re
$183.18$183.18 -
Takex
UM-TL15T
Transmitter Only
Photoelectric Sensor, Transmitter, Thru-Beam, NPN, Red LED, 150mm Range, Cable, Ultra Miniature
$52.28$52.28 -
$167.88$167.88 -
Autonics
BH20M-TDT
BH Series
Photoelectric, Thru-Beam, 20m Sensing, 12-24VDC, NPN/PNP, IP67, Front or Side Mount, Compact
$98.00$98.00 -
Takex
UM-T50DTVP
Photoelectric Sensor, Thru-Beam, PNP, Transmitter/Receiver, 500mm, Cable, Ultra Mini
$140.68$140.68
Photoelectric sensors detect the distance, absence or presence of an object. These sensors are great for sensing long distances and detecting most materials.
Additional Sensor Categories:
Proximity | Ultrasonic | Pressure | Temperature | Level | Tilt
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