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_-_o500h_-_through_beam_sensor_receiver_1__71227.jpg

    Baumer

    O500H.ER-GW1B.PVOV

    Thru-Beam Sensor, Receiver, Hygienic Design, 10-30VDC, 25m Actual Range Sb, 40m Nominal Range Sn, Push-Pull, Teach-In: Remote, Light/Dark Operate, M12 Flylead Connector (200mm Lenggth), Plastic Housing, PMMA Optics, 45 x 18 x 32mm) HWD),

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    O500H.GP-GW1J.PVCV

    Diffuse Sensor, Background Suppression, Hygienic Design, 10-30VDC, 60-400mm Sensing Distance Tw, 30-400mm Sensing Range Tb, Pulsed PinPoint LED, 630 nm, Push-Pull, Teach-In and IO-Link, Light/Dark Operate, 2m 4-Pin Cable, Stainless Steel Ho

  • baumer_-_o500h.gp_-_diffuse_sensor_1_1__24513.jpg

    Baumer

    O500H.GP-GW1J.PVOV

    Diffuse Sensor, Background Suppression, Hygienic Design, 10-30VDC, 60-400mm Sensing Distance Tw, 30-400mm Sensing Range Tb, Pulsed PinPoint LED, 630 nm, Push-Pull, Teach-In and IO-Link, Light/Dark Operate, M12 Flylead Connector (300mm Lengt

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    Baumer

    O500H.RP-GW1B.PVCV

    Retroreflective Sensor, Polarization Filter, Hygienic Design, 10-30VDC, 7.5 Actual Range Sb, 8m Nominal Range Sn, Pulsed PinPoint LED, 630 nm, Push-Pull, Teach-In: Remote, Light/Dark Operate, 2m 4-Pin Cable, Stainless Steel Housing, PMMA Op

  • baumer_-_o500h.gp_-_diffuse_sensor_1_2__01344.jpg

    Baumer

    O500H.RP-GW1B.PVOV

    Retroreflective Sensor, Polarization Filter, Hygienic Design, 10-30VDC, 7.5 Actual Range Sb, 8m Nominal Range Sn, Pulsed PinPoint LED, 630 nm, Push-Pull, Teach-In: Remote, Light/Dark Operate, M12 Flylead Connector (300mm Length), Stainless

  • baumer_-_o500h.gp_-_diffuse_sensor_2__67440.jpg

    Baumer

    O500H.RP.T-GW1J.PVCV

    Retroreflective Sensor, Polarization Filter, Hygienic Design, Transparent Object Detection, 10-30VDC, 5.5 Actual Range Sb, 6m Nominal Range Sn, Pulsed PinPoint LED, 630 nm, Push-Pull, Teach-In and IO-Link, Light/Dark Operate, 2m 4-Pin Cable

  • baumer_-_o500h.gp_-_diffuse_sensor_1_3__90927.jpg

    Baumer

    O500H.RP.T-GW1J.PVOV

    Retroreflective Sensor, Polarization Filter, Hygienic Design, Transparent Object Detection, 10-30VDC, 5.5 Actual Range Sb, 6m Nominal Range Sn, Pulsed PinPoint LED, 630 nm, Push-Pull, Teach-In and IO-Link, Light/Dark Operate, M12 Flylead Co

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    Baumer

    O500H.SP-GW1J.PVCV

    SmartReflect Light Barrier, Hygienic Design, Standard Object Detection, 10-30VDC, 60-600mm Background Position Sde, Pulsed PinPoint LED, 630 nm, Push-Pull, Teach-In and IO-Link, Light/Dark Operate, 2m 4-Pin Cable, Stainless Steel Housing, P

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    Baumer

    O500H.SP-GW1J.PVOV

    SmartReflect Light Barrier, Hygienic Design, Standard Object Detection, 10-30VDC, 60-600mm Background Position Sde, Pulsed PinPoint LED, 630 nm, Push-Pull, Teach-In and IO-Link, Light/Dark Operate, M12 Flylead Connector (300mm Length), Stai

  • baumer_-_o500h.gp_-_diffuse_sensor_4__42764.jpg

    Baumer

    O500H.SP.T-GW1J.PVCV/B005

    SmartReflect Light Barrier, Hygienic Design, Transparent Object Detection, 10-30VDC, 60-1000mm Background Position Sde, Pulsed PinPoint LED, Push-Pull, Teach-In and IO-Link, Light/Dark Operate, 2m 4-Pin Cable, Stainless Steel Housing, PMMA

  • baumer_-_o500h.gp_-_diffuse_sensor_1_5__71924.jpg

    Baumer

    O500H.SP.T-GW1J.PVOV/B005

    SmartReflect Light Barrier, Hygienic Design, Transparent Object Detection, 10-30VDC, 60-1000mm Background Position Sde, Pulsed PinPoint LED, 630 nm, Push-Pull, Teach-In and IO-Link, Light/Dark Operate, M12 Flylead Connector (300mm Length),

  • baumer_-_o500w.er_-_through_beam_sensor__91926.jpg

    Baumer

    O500W.ER-GW1B.PVO

    Thru-Beam Sensor, Receiver, Washdown Design, 10-30VDC, 25m Actual Range Sb, 40m Nominal Range, Push-Pull, qteach/Remote, Light/Dark Operate, M12 4-Pin Connector, Stainless Steel Housing, PMMA Optics, 47.2 x 20.2 x 37.7mm (HWD), -25 to 60

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