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With retro-reflective photoelectric sensors, or reflector sensors, the transmitter and receiver are located in one housing, just like with the diffuse proximity sensors. However, the retro-reflective sensor now always looks at a reflector, which is placed opposite of the sensor.

The output of the sensor becomes active as soon as an object moves inbetween the sensor and the reflector. Unlike with normal reflective sensors, polarized retro-reflective photoelectric sensors use special polarized filters so that the receiver accepts only light reflected by the reflector and not by another reflective object, such as the metallic paint of a car. Thus, it is possible to detect translucent and reflective objects as well.

A big advantage of these polarized retro-reflective sensors is that they are not susceptible to false detections. Do you want to delve further into the types of photoelectric retro-reflective sensors? Read more here!

Convinced, but not sure which one? Get in touch with our experts!

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  • QFRN/BP-1A
    • QFRN/BP-1A
    • QFRN/BP-1A

    • 105,80 excl. VAT
    • The QFRN-BP-1A from Micro Detectors is a photoelectric polarized reflector sensor with a range of up to 6 m in a cubic stainless steel housing with ECOLAB certification. The QFRN/BP-1A can detect products or objects superfast because of the high switching frequency of 1 kHz, without the need for a reflector. The ECOLAB housing and the IP68 and IP69K protection class make this sensor suited for applications in the food industry or ...
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    Micro Detectors
    SKU: QFRN/BP-1A
    In stock
  • SMR 8500 MG J
    • SMR 8500 MG J
    • SMR 8500 MG J

    • The SMR 8500 MG J is a photoelectric receiver with a range of up to 7 meters in a stainless steel M18 housing. The photoelectric sensor has a 4 pin M12 connector and is PNP (NO+NC) configurable.
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    Telco Sensors
    SKU: 0472114300
  • FFRL/BP-1E
    • FFRL/BP-1E
    • FFRL/BP-1E

    • 102,96 excl. VAT
    • The FFRL/BP-1E of Micro Detectors is a polarized retro-reflective photoelectric sensor in a cylindrical stainless steel housing with a measuring range of 0.1 ... 1.5 m, a 4-pin M12 connector and a digital PNP (NO/NC) switching output. In addition, the sensor had LED indicators for a teach-in function with which the sensitivity can be registered. This sensor is suited for applications in extreme conditions or in the food & beverages industry.
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    Micro Detectors
    SKU: FFRL/BP-1E
  • FFRL/BN-1E
    • FFRL/BN-1E
    • FFRL/BN-1E

    • 102,96 excl. VAT
    • The FFRL/BN-1E of Micro Detectors is a polarized retro-reflective photoelectric sensor in a cylindrical stainless steel housing with a measuring range of 0.1 ... 1.5 m, a 4-pin M12 connector and a digital NPN (NO/NC) switching output. In addition, the sensor had LED indicators for a teach-in function with which the sensitivity can be registered. This sensor is suited for applications in extreme conditions or in the food & beverages industry.
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    Micro Detectors
    SKU: FFRL/BN-1E
  • FFRL/0P-1E
    • FFRL/0P-1E
    • FFRL/0P-1E

    • 102,96 excl. VAT
    • The FFRL/0P-1E of Micro Detectors is a retro-reflective photoelectric sensor in a cylindrical stainless steel housing with a measuring range of 0.1 ... 1.5 m, a 4-pin M12 connector and a digital PNP (NO/NC) switching output for the detection of transparant obejcts. In addition, the sensor had LED indicators for a teach-in function with which the sensitivity can be registered. This sensor is suited for applications in extreme conditions or in the food & beverages industry.
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    Micro Detectors
    SKU: FFRL/0P-1E
  • FFRP/BP-1E
    • FFRP/BP-1E
    • FFRP/BP-1E

    • 102,96 excl. VAT
    • The FFRP/BP-1E of Micro Detectors is a polarized retro-reflective photoelectric sensor in a cylindrical stainless steel housing with a measuring range of 4 m, a 4-pin M12 connector and a digital PNP (NO+NC) switching output. This sensor is suited for applications in extreme conditions or in the food & beverages industry.
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    Micro Detectors
    SKU: FFRP/BP-1E
  • FFRP/BN-1E
    • FFRP/BN-1E
    • FFRP/BN-1E

    • 97,59 excl. VAT
    • The FFRP/BN-1E of Micro Detectors is a polarized retro-reflective photoelectric sensor in a cylindrical stainless steel with a measuring range of 4m, a 4-pin M12 connector and a digital NPN (NO+NC) siwthcing output. This sensor is suited for applications in extreme conditions or in the food & beverages industry.
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    Micro Detectors
    SKU: FFRP/BN-1E
  • FFRP/0P-1E
    • FFRP/0P-1E
    • FFRP/0P-1E

    • 97,59 excl. VAT
    • The FFRP/0P-1E of Micro Detectors is a polarized retro-reflective photoelectric sensor in a cylindrical stainless steel housing with a measuring range of 4 m, a 4-pin M12 connector and a digital PNP (NO/NC) switching output. This sensor is suited for applications in extreme conditions or in the food & beverages industry.
    • Add to cart
    Micro Detectors
    SKU: FFRP/0P-1E
  • FFRL/0N-1E
    • FFRL/0N-1E
    • FFRL/0N-1E

    • 102,96 excl. VAT
    • The FFRN/0N-1E of Micro Detectors is a retro-reflective photoelectric sensor in a cylindrical stainless steel housing with a measuring range of 0.1 ... 1.5 m, a 4-pin M12 connector and a digital NPN (NO/NC) switching output for the detection of transparant obejcts. In addition, the sensor had LED indicators for a teach-in function with which the sensitivity can be registered. This sensor is suited for applications in extreme conditions or in the food & beverages industry.
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    Micro Detectors
    SKU: FFRL/0N-1E
  • FFRP/0N-1E
    • FFRP/0N-1E
    • FFRP/0N-1E

    • 97,59 excl. VAT
    • The FFRP/0N-1E of Micro Detectors is a polarized retro-reflective photoelectric sensor in a cylindrical stainless steel housing with a measuring range of 4 m, a 4-pin M12 connector and a digital NPN (NO/NC) switching output. This sensor is suited for applications in extreme conditions or in the food & beverages industry.
    • Add to cart
    Micro Detectors
    SKU: FFRP/0N-1E
  • FFRN/BP-1E
    • FFRN/BP-1E
    • FFRN/BP-1E

    • 102,96 excl. VAT
    • The FFRN/BP-1E of Micro Detectors is a polarized retro-reflective photoelectric sensor in a cylindrical stainless steel housing with a measuring range of 4 m, a 4-pin M12 connector and a digital PNP (NO/NC) switching output. In addition, the sensor had LED indicators for a teach-in function with which the sensitivity can be registered. This sensor is suited for applications in extreme conditions or in the food & beverages industry.
    • Add to cart
    Micro Detectors
    SKU: FFRN/BP-1E
  • FFRN/BN-1E
    • FFRN/BN-1E
    • FFRN/BN-1E

    • 102,96 excl. VAT
    • The FFRN/BN-1E of Micro Detectors is a polarized retro-reflective photoelectric sensor in a cylindrical stainless steel with a measuring range of 4m, a 4-pin M12 connector and a digital NPN (NO+NC) switching output. In addition, the sensor had LED indicators for a teach-in function with which the sensitivity can be registered. This sensor is suited for applications in extreme conditions or in the food & beverages industry.
    • Add to cart
    Micro Detectors
    SKU: FFRN/BN-1E
  • FFRN/0P-1E
    • FFRN/0P-1E
    • FFRN/0P-1E

    • 102,96 excl. VAT
    • The FFRN/0P-1E of Micro Detectors is a polarized retro-reflective photoelectric sensor in a cylindrical stainless steel housing with a measuring range of 4 m, a 4-pin M12 connector and a digital PNP (NO/NC) switching output. In addition, the sensor had LED indicators for a teach-in function with which the sensitivity can be registered. This sensor is suited for applications in extreme conditions or in the food & beverages industry.
    • Add to cart
    Micro Detectors
    SKU: FFRN/0P-1E
  • FFRN/0N-1E
    • FFRN/0N-1E
    • FFRN/0N-1E

    • 102,96 excl. VAT
    • The FFRN/0N-1E of Micro Detectors is a polarized retro-reflective photoelectric sensor in a cylindrical stainless steel with a measuring range of 4m, a 4-pin M12 connector and a digital NPN (NO/NC) switching output. In addition, the sensor had LED indicators for a teach-in function with which the sensitivity can be registered. This sensor is suited for applications in extreme conditions or in the food & beverages industry.
    • Add to cart
    Micro Detectors
    SKU: FFRN/0N-1E
  • QMRL/0N-0F
    • QMRL/0N-0F
    • QMRL/0N-0F

    • 107,50 excl. VAT
    • The QMRL/0N-0F of Micro Detectors is a high-performance retro-reflective photoelectric sensor for transparent objects in cubic plastic mini-housing. The sensor has visible red LED, a measuring range of 4m, a NPN + NO/NC switching output and is equipped with a 4-pin M8 connector.
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    Micro Detectors
    SKU: QMRL/0N-0F
    2-4 weeks
  • QMRL/0N-0A
    • QMRL/0N-0A
    • QMRL/0N-0A

    • 105,50 excl. VAT
    • The QMRL/0N-0A of Micro Detectors is a high-performance retro-reflective photoelectric sensor for transparent objects in cubic plastic mini-housing. The sensor has visible red LED, a measuring range of 4m, a NPN+NO/NC switching output and is equipped with a 2m. fixed cable.
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    Micro Detectors
    SKU: QMRL/0N-0A
    2-4 weeks
  • QMRL/0P-0F
    • QMRL/0P-0F
    • QMRL/0P-0F

    • 107,50 excl. VAT
    • The QMRL/0P-0F of Micro Detectors is a high-performance retro-reflective photoelectric sensor for transparent objects in cubic plastic mini-housing. The sensor has visible red LED, a measuring range of 4m, a PNP+NO/NC switching output and is equipped with a 4-pin M8 connector.
    • Add to cart
    Micro Detectors
    SKU: QMRL/0P-0F
    2-4 weeks
  • QMRL/0P-0A
    • QMRL/0P-0A
    • QMRL/0P-0A

    • 105,50 excl. VAT
    • The QMRL/0P-0A of Micro Detectors is a high-performance retro-reflective photoelectric sensor for transparent objects in cubic plastic mini-housing. The sensor has visible red LED, a measuring range of 0.4...4m, a PNP+NO/NC switching output and is equipped with a 2m. fixed cable.
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    Micro Detectors
    SKU: QMRL/0P-0A
    2-4 weeks
  • QMIG/0N-0F
    • QMIG/0N-0F
    • QMIG/0N-0F

    • 107,50 excl. VAT
    • The QMIG/0N-0F of Micro Detectors is a high-performance retro-reflective photoelectric sensor for transparent objects in cubic plastic mini-housing. The sensor has visible red LED, a measuring range of 0.05...1.0m, a NPN+NO/NC switching output and is equipped with a 4-pin M8 connector.
    • Add to cart
    Micro Detectors
    SKU: QMIG/0N-0F
    2-4 weeks
  • QMIG/0N-0A
    • QMIG/0N-0A
    • QMIG/0N-0A

    • 105,50 excl. VAT
    • The QMIG/0N-0A of Micro Detectors is a high-performance retro-reflective photoelectric sensor for transparent objects in cubic plastic mini-housing. The sensor has visible red LED, a measuring range of 1.0m, a NPN + NO/NC switching output and is equipped with a 2m. fixed cable.
    • Add to cart
    Micro Detectors
    SKU: QMIG/0N-0A
    2-4 weeks

Buy retro-reflective photoelectric sensors

A retro-reflective photoelectric sensor is a reliable means of detection. With these sensors, the transmitter and receiver are present in the same housing. Would you like to know more about the operation of retro-reflective photoelectric sensors? Read the knowledge base article here “How do photoelectric sensors work?”

QE series

Retro-reflective photoelectric sensors from the QE series of Micro Detectors are equipped with a plastic miniature housing, NO and NC switching outputs and a switching frequency of 1 kHz for fast detections. Furthermore, the sensitivity can be set with a potentiometer on the back of the housing.

QF series

The QF series retro-reflective photoelectric sensors from Micro Detectors, with a stainless steel housing and an IP69K sealing degree, are the most fully equipped photoelectric sensors for use in challenging applications. Furthermore, the sensors are provided with an ECOLAB housing for use in applications with high hygiene requirements, such as those in the food industry.

QM series

The QM series retro-reflective photoelectric sensors from Micro Detectors are high-performance photoelectric sensors equipped with a switching frequency of 2 kHz. This means 2000 detections per second! The sensors can be configured as NO and NC for versatility.

SM8000 series

The SM8000 retro-reflective photoelectric sensors from Telco Sensors are a series of photoelectric sensors with transmitter and receiver in the same housing with an adjustable range up to 3 meters. The stainless steel M18 housing is equipped with a potentiometer for the sensitivity adjustment as well as for setting a PNP-NO or -NC output. In addition, a choice can be made between a 5 meter fixed cable or a 4-pin M12 connector.

SP2000 series

The SP2000 retro-reflective photoelectric sensors from Telco Sensors with transmitter and receiver in the same housing have a range of 45 meters and use the well-known 50 x 50 mm housing. The retro-reflective photoelectric sensor has a relay or digital PNP/NPN switching output (NO+NC) and 12-240 Vac/dc supply voltage as standard. The sensitivity and on/off delay are adjustable via potentiometers.