Photoelectric Sensors

Photoelectric sensors detect the distance, absence or presence of an object. These sensors are great for sensing long distances and detecting most materials.

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  • baumer-om20-30-photo-sensor_2__41791.jpg

    Baumer

    OM20-P0026.HH.TXN

    Photoelectric Distance Sensor, 16-26mm, 12-28VDC, RS485, Modbus RTU, 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)

    $1,833.00
    $1,833.00
  • baumer-om20-30-photo-sensor_3__57012.jpg

    Baumer

    OM20-P0026.HH.YIN

    Distance Sensor, 16-26mm, 12-28VDC, 4-20mA/2-10mA, IO-Link V1.1, 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 x 13mm (HWD)

    $1,833.00
    $1,833.00
  • baumer-om20-30-photo-sensor_4__76927.jpg

    Baumer

    OM20-P0026.HH.YUN

    Photoelectric Distance Sensor, Laser Point, 16-26mm Range, Analog and Digital Output Signal: 0-10VDC/0-5VDC, 12-28VDC, 50mA, Teach-In Button/IO Link, Pulsed Red Laser Diode, Die-Cast Zinc, M8 4-pin Connector, IP67, -10 to +50°C° Operating T

    $1,833.00
    $1,833.00
  • baumer-om20-30-photo-sensor_5__83842.jpg

    Baumer

    OM20-P0026.HV.AIN

    Distance Sensor, 16-26mm, 12-28VDC, 4-20mA Output, Teach-In, Point Beam, Laser Class 2, 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-om20-30-photo-sensor_6__60876.jpg

    Baumer

    OM20-P0026.HV.AUN

    Distance Sensor, 16-26mm, 12-28VDC, 0-10VDC Output, Teach-In, Point Beam, Laser Class 2, 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-om20-30-photo-sensor_7__27255.jpg

    Baumer

    OM20-P0120.HH.AIN

    Distance Sensor, 16-120mm, 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-om20-30-photo-sensor_8__68484.jpg

    Baumer

    OM20-P0120.HH.AUN

    Distance Sensor, 16-120mm, 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
  • baumer-om20-30-photo-sensor_10__16821.jpg

    Baumer

    OM20-P0120.HH.YIN

    Distance Sensor, 16-120mm, 12-28VDC, 4-20mA/2-10mA, IO-Link V1.1, Teach-In, Point Beam, Laser Class1, Pulsed Red Laser Diode, Die-Cast Zinc, M8 4-pin Connector, IP67, CE, cULus, -10 to +50°C Operating Temperature, 37 x 34.5 x 13mm (HWD)

    $1,833.00
    $1,833.00
  • baumer-om20-30-photo-sensor_12__72914.jpg

    Baumer

    OM20-P0120.HV.AIN

    Distance Sensor, 16-120mm, 12-28VDC, 4-20mA Output, Teach-In, Point Beam, Laser Class 2, 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-om30-photo-sensor__37626.jpg

    Baumer

    OM30-L0100.HV.AIN

    Distance Sensor, 50-100mm, 12-28VDC, 4-20mA Output, Teach-In, Line Beam, Laser Class 2, Pulsed Red Laser Diode, Die-Cast Zinc, M8 4-pin Connector, IP67, CE, cULus, -10 to +50°C Operating Temperature, 49 x 40.3.5 x13.6mm (HWD)

    $2,036.00
    $2,036.00
  • baumer-om30-photo-sensor_1__40743.jpg

    Baumer

    OM30-L0100.HV.AUN

    Distance Sensor, 50-100mm, 12-28VDC, 0-10VDC Output, Teach-In, Line Beam, Laser Class 2, Pulsed Red Laser Diode, Die-Cast Zinc, M8 4-pin Connector, IP67, CE, cULus, -10 to +50°C Operating Temperature, 49 x 40.3.5 x13.6mm (HWD)

    $2,036.00
    $2,036.00
  • baumer-om30-photo-sensor_2__36433.jpg

    Baumer

    OM30-L0100.HV.TXN

    Distance Sensor, 50-100mm, 12-28VDC, RS485, Modbus RTU, Teach-In, Line Beam, Laser Class 2, Pulsed Red Laser Diode, Die-Cast Zinc, M8 4-pin Connector, IP67, CE, cULus, -10 to +50°C Operating Temperature, 49 x 40.3.5 x13.6mm (HWD)

    $1,833.00
    $1,833.00

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:

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