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_-_om70-ek_-_sensor_14__32121.jpg

    Baumer

    OM70-L1000.HV1000.EK

    High Performance Laser Distance Sensor, 100-1000mm Measuring Distance Sd, 1000mm Sweet Spot, OM70 Laser Line Basic, Webserver, Ethernet TCP/IP, 15-28VDC, Analog and Digital, IP67, 74 x 26 x 55mm (HWD)

    $3,818.80
    $3,818.80
  • o200.tr_-_sensor_threaded_r__32764.jpg

    Baumer

    O200.TR-ZZZX.72CV/H006

    Miniature Photoelectric Thru-Beam Sensor, Emitter, Pulsed Red LED, 10-30VDC, 5m Sb / 6m Sn Range, Push-Pull Threaded Sleeves M3 (Stainless Steel), 2m 4-Pin PVC Cable, Plastic (ASA, PMMA) Housing, Rectangular 25.1 x 8 x 14.1mm (HWD), -25-

  • baumer_-_o200.tr_-_sensor_smooth_l_2__12928.jpg

    Baumer

    O200.EL-GW2I.72CV/A014_FREC

    Miniature Photoelectric Thru-Beam Sensor, Receiver, Pulsed Red Laser Diode, 10-30VDC, 5m Range, Light/Dark Operate, IO-Link Dual Channel, Push-Pull Smooth Sleeve (Stainless Steel), 2m 4-Pin PVC Cable, Plastic (ASA, PMMA) Housing, Rectang

  • baumer_-_o500.gp_-_diffuse_sensor_-_cable_14__64180.jpg

    Baumer

    O500.GR-NV1T.72CU/T003

    Diffuse Sensor, Background Suppression, 10-30VDC, 60-550mm Sensing Distance Tw, 30-600mm Sensing Range Tb, Pulsed Red LED, 630 nm, NPN, qTeach/1-Step Teach-In, Light/Dark Operate, 2m 4-Pin Cable, Plastic Housing, PMMA Optics, 45 x 18 x 32mm

  • baumer_-_om70-ek_-_sensor_21__18273.jpg

    Baumer

    OM70-P0140.HH0130.EK

    High Performance Laser Distance Sensor, 40-140mm Measuring Distance Sd, 130mm Sweet Spot, OM70 Laser Point Basic, Webserver, Ethernet TCP/IP, 15-28VDC, Analog and Digital, IP67, 74 x 26 x 55mm (HWD)

    $3,818.80
    $3,818.80
  • baumer_-_o200.tr_-_sensor_threaded_l_1__57622.jpg

    Baumer

    O200.EL-GW1J.72NV/FREC_H006

    Miniature Photoelectric Thru-Beam Sensor, Receiver, Pulsed Red Laser Diode, 10-30VDC, 5m Range, Light/Dark Operate, Teach-in and IO-Link, Push-Pull Threaded Sleeves M3 (Stainless Steel), Flylead Connector M8 4-Pin 0.2m Length, Plastic (A

  • baumer_-_fhdk_14n5104_-_diffuse_sensor__33644.jpg

    Baumer

    FHDK 14N5104

    Diffuse Sensor, Background Suppression (BGS), Pulsed Red LED, 30-500mm Range Tw, Mech. 10-Turn Adj., 10-30VDC, Light/Dark Operate, NPN, <100mA, 2m 4-Pin Cable, 43 x 14.8 x 32.7mm (HWD), Plastic Housing, PMMA Optics, -25 to +65°C, IP67

  • baumer_-_om70-vi_-_sensor_13__00346.jpg

    Baumer

    OM70-L1000.HV0700.VI

    High Performance Laser Distance Sensor, 100-1000mm Measuring Distance Sd, 700mm Sweet Spot, OM70 Laser Line, Touch Display, RS485, 15-28VDC, Analog and RS485, IP67, 74 x 26 x 55mm (HWD)

    $3,479.29
    $3,479.29
  • baumer_-_o200.tr_-_sensor_smooth_l_1__07040.jpg

    Baumer

    O200.EL-GW1J.72NV/FREC

    Miniature Photoelectric Thru-Beam Sensor, Receiver, Pulsed Red Laser Diode, 0-30VDC, 5m Range, Light/Dark Operate, Teach-in and IO-Link, Push-Pull Smooth Sleeve (Stainless Steel), Flylead Connector M8 4-Pin 0.2m Length, Plastic (ASA, PMM

  • baumer_-_o500.gp_-_diffuse_sensor_-_cable_13__65656.jpg

    Baumer

    O500.GR-NV1T.72CU

    Diffuse Sensor, Background Suppression, 10-30VDC, 60-550mm Sensing Distance Tw, 30-600mm Sensing Range Tb, Pulsed Red LED, 630 nm, NPN, qTeach, Light/Dark Operate, 2m 4-Pin Cable, Plastic Housing, PMMA Optics, 45 x 18 x 32mm (HWD), -25 to 6

  • baumer_-_o200.tr_-_sensor_smooth_r__98397.jpg

    Baumer

    O200.TR-ZZZX.72CV

    Miniature Thru-Beam Sensor, Emitter, Pulsed Red LED, 10-30VDC, 5m Sb/6m Sn Range, Push-Pull Smooth Sleeve (Stainless Steel), 2m 4-Pin PVC Cable, Plastic (ASA, PMMA) Housing, Rectangular 25.1 x 8 x 14.1mm (HWD), -25-+50°C, IP67

  • baumer_-_om70-ek_-_sensor_13__67684.jpg

    Baumer

    OM70-L1000.HV0700.EK

    High Performance Laser Distance Sensor, 100-1000mm Measuring Distance Sd, 700mm Sweet Spot, OM70 Laser Line, Webserver, Ethernet TCP/IP, 15-28VDC, Analog and Digital, IP67, 74 x 26 x 55mm (HWD)

    $3,818.80
    $3,818.80

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