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_-_o500.gp_-_diffuse_sensor_-_cable_6__98978.jpg

    Baumer

    O500.DI-GM1J.72CU

    Laser Distance Sensor, 10-30VDC, 60-550mm Measuring Distance Sd, Pulsed InfraRed Diode, 860 nm, Push-Pull, Teach-In and IO-Link, 2m 4-Pin Cable, Plastic Housing, PMMA Optics, 45 x 18 x 32mm (HWD), -25 to 60°C Operating Temperature, IP67

  • baumer_-_o500.gp_-_diffuse_sensor_-_m12_4_pin_5__03226.jpg

    Baumer

    O500.DI-GM1J.72O

    Laser Distance Sensor, 10-30VDC, 60-550mm Measuring Distance Sd, Pulsed InfraRed Diode, 860 nm, Push-Pull, Teach-In and IO-Link, M12 4-Pin Connector, Plastic Housing, PMMA Optics, 45 x 18 x 32mm(HWD), -25 to 60°C Operating Temperature, IP67

  • baumer_-_o500.gp_-_diffuse_sensor_-_cable_7__62997.jpg

    Baumer

    O500.DP-GM1J.72CU

    Laser Distance Sensor, 10-30VDC, 60-400mm Measuring Distance Sd, Pulsed PinPoint LED, 630 nm, Push-Pull, Teach-In and IO-Link, 2m 4-Pin Cable, Plastic Housing, PMMA (Optics), 45 x 18 x 32mm (HWD), -25 to 60°C Operating Temperature, IP67

  • baumer_-_o500.gp_-_diffuse_sensor_-_m12_4_pin_6__68553.jpg

    Baumer

    O500.DP-GM1J.72O

    Laser Distance Sensor, 10-30VDC, 60-400mm Measuring Distance Sd, Pulsed PinPoint LED, 630 nm, Push-Pull, Teach-In and IO-Link, M12 4-Pin Connector, Plastic Housing, PMMA Optics, 45 x 18 x 32mm) HWD), -25 to 60°C Operating Temperature, IP67

  • baumer_-_o500.gp_-_diffuse_sensor_-_cable_8__06690.jpg

    Baumer

    O500.ER-GW1B.72CU

    Thru-Beam Sensor, Receiver, 10-30VDC, 25m Actual Range Sb, Push-Pull, qTeach/Remote, Light/Dark Operate, 2m 4-Pin Cable, Plastic Housing, PMMA Front (Optics), 45 x 18 x 32mm (HWD), -25 to 60°C Operating Temperature, IP67

  • baumer_-_o500.er_-_through_beam_sensor__29141.jpg

    Baumer

    O500.ER-GW1B.72O

    Thru-Beam Sensor, Receiver, 10-30VDC, 25m Actual Range Sb, Push-Pull, qTeach/Remote, Light/Dark Operate, M12 4-Pin Connector, Plastic Housing, PMMA Front (Optics), 45 x 18 x 32mm (HWD), -25 to 60°C Operating Temperature, IP67

  • baumer_-_o500.gp_-_diffuse_sensor_-_cable_9__57923.jpg

    Baumer

    O500.ER-NV1T.72CU

    Thru-Beam Sensor, Receiver, 10-30VDC, 25m Actual Range Sb, NPN, qTeach, Light/Dark Operate, 2m 4-Pin Cable, Plastic Housing, PMMA Front (Optics), 45 x 18 x 32mm (HWD), -25 to 60°C Operating Temperature, IP67

  • baumer_-_o500.er_-_through_beam_sensor_1__07312.jpg

    Baumer

    O500.ER-NV1T.72O

    Thru-Beam Sensor, Receiver, 10-30VDC, 25m Actual Range Sb, NPN, qTeach, Light/Dark Operate, M12 4-Pin Connector, Plastic Housing, PMMA Front (Optics), 45 x 18 x 32mm (HWD), -25 to 60°C Operating Temperature, IP67

  • baumer_-_o500.gp_-_diffuse_sensor_-_cable_10__59083.jpg

    Baumer

    O500.ER-PV1T.72CU

    Thru-Beam Sensor, Receiver, 10-30VDC, 25m Actual Range Sb, PNP, qTeach, Light/Dark Operate, 2m 4-Pin Cable, Plastic Housing, PMMA Front (Optics), 45 x 18 x 32mm (HWD), -25 to 60°C Operating Temperature, IP67

  • baumer_-_o500.er_-_through_beam_sensor_2__89846.jpg

    Baumer

    O500.ER-PV1T.72O

    Thru-Beam Sensor, Receiver, 10-30VDC, 25m Actual Range Sb, PNP, qTeach, Light/Dark Operate, M12 4-Pin Connector, Plastic Housing, PMMA Front (Optics), 45 x 18 x 32mm (HWD), -25 to 60°C Operating Temperature, IP67

  • baumer_-_o500.gp_-_diffuse_sensor_-_cable_11__52470.jpg

    Baumer

    O500.GI-GW1B.72CU

    Diffuse Sensor, Background Suppression, 10-30VDC, 60-550mm Sensing Distance Tw, 30-600mm Sensing Range Tb, Pulsed InfraRed Diode, 860 nm, Push-Pull, qTeach/External, Light/Dark Operate, 2m 4-Pin Cable, Plastic Housing, PMMA Optics, 45 x 18

  • baumer_-_o500.gp_-_diffuse_sensor_-_m12_4_pin_7__06656.jpg

    Baumer

    O500.GI-GW1B.72O

    Diffuse Sensor, Background Suppression, 10-30VDC, 60-550mm Sensing Distance Tw, 30-600mm Sensing Range Tb, Pulsed InfraRed Diode, 860 nm, Push-Pull, qTeach/External, Light/Dark Operate, M12 4-Pin Connector, Plastic Housing, PMMA Optics, 45

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