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$1,342.00$1,342.00 -
$1,327.00$1,327.00 -
$2,563.00$2,563.00 -
$1,342.00$1,342.00 -
$1,327.00$1,327.00 -
$1,327.00$1,327.00 -
$1,617.00$1,617.00 -
$1,606.00$1,606.00 -
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Baumer
OHDM 20P6990/S14C
Diffuse Sensor with Background Suppression, 12-28VDC, 210-1500mm Sensing Distance Tw, Pulsed Red Laser Diode, Teach-in, PNP, Light/Dark Operate, M12 5-Pin Connector, 65 x 20.6 x 50mm (HWD), 0 to +50°C, IP67
$2,971.00$2,971.00 -
Baumer
OM20-P0026.HH.AIN
Distance Sensor, 16-26mm, 12-28VDC, Analog 4-20mA Output, Teach-In, Point Beam, Laser Class 1, Pulsed Red Laser Diode, Die-Cast Zinc, M8 4-pin Connector, IP67, CE, cULus, -10 to +50°C Operating Temperature, 37 x 34.5 x13mm (HWD)
$2,036.00$2,036.00 -
Baumer
OM20-P0026.HH.AUN
Distance Sensor, 16-26mm, 12-28VDC, Analog 0-10VDC Output, Teach-In, Point Beam, Laser Class 1, Pulsed Red Laser Diode, Die-Cast Zinc, M8 4-pin Connector, IP67, CE, cULus, -10 to +50°C Operating Temperature, 37 x 34.5 x13mm (HWD)
$2,036.00$2,036.00
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