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.

Additional Sensor Categories:
Proximity | Ultrasonic | Pressure | Temperature | Level | Tilt

 

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    Takex

    NA-T20RF

    NA Series

    Photoelectric Sensor, Power Supply, Thru-Beam, Relay, Red LED, 20000mm Range, Terminal Block

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    Takex

    NA-T20R

    NA Series

    Photoelectric Sensor, Power Supply, Thru-Beam, Relay, Red LED, 20000mm Range, Terminal Block

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    Takex

    FT105BC-CS

    Fiber Optic Cable, 2m Length, Diameter: 2.2mm Cable and 1.5mm Core, 45R Bending Radius, Polyethylene Sheath with Plastic Core, -30 to +70°, for CS Color Sensor

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    Takex

    GMR2RSPNN-J

    Middle-G Series | Limited Stock Savings: 1 unit available at this price

    Photoelectric Sensor, Amplifier, Diffuse, PNP, Red LED, IP67, Compact, M8 Connector

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    Takex

    GSR05RSN

    Middle-G Series

    Photoelectric Sensor, Diffuse Reflective, NPN, Side On, Red LED, 500mm Range, 12/24VDC, Attached Cable, IP67

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    Takex

    F85RN

    Replacement for F1, F10, F11, F5, F7, F80 Series

    Fiber Optic Sensor, Dual Display, 12-24VDC, NPN/PNP, Dark On/Light On, M8 Connector, 0.065 - 4.000ms Response Time, IP40, Replacement for F1, F10, F11, F5, F7, F80 Series. Please review specifications for your application.

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    Takex

    GSM2RSN

    Mini-G Series | Limited Stock Savings: 1 unit available at this price

    Photoelectric Sensor, Polarized Reflective, NPN, Red LED, 2000mm Range, 12/24VDC, 2M Cable

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    Takex

    GS5SN

    Mini-G Series, Advertised Pricing Limited to MWA Stock! | Limited Stock Savings: 1 unit available at this price

    Photoelectric Sensor, Diffuse Reflective, NPN, Infrared LED, 70mm Range, 12/24VDC, Cable, IP67

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    Takex

    GS20SPN

    Mini-G Series | Limited Stock Savings: 5 units available at this price

    Photoelectric Sensor, Diffuse Reflective, PNP, Infrared LED, 300mm Range, 12/24VDC, Cable

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    Takex

    GS20RN-Y6J

    Custom Build

    Diffuse Reflective Sensor, 12-24VDC, Infrared LED, 300mm Range, NPN, Light On/Dark On Selectable, 2m Black Cable with Flying Lead, IP67

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

Additional Sensor Categories:
Proximity | Ultrasonic | Pressure | Temperature | Level | Tilt

 

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