Sensor Reflectors

Sensor reflectors are used with all retro- or auto-reflective sensors and are critical for the function of the sensor. Sensor reflectors are available in a range of formats to suit different applications and environmental conditions.

Types of sensor reflectors

Most commonly sensor reflectors are square, rectangular or circular with multi-faceted surfaces to capture and return the light beam. They have single hole, dual hole or adhesive mountings and can be matched with specific sensors to optimise performance. In most situations a standard sensor reflector made from ceramic or lightweight acrylic can be used. Some sensors in industrial environments need reflectors that are made from specific materials such as stainless steel, or that have chemical- or heat-resistant properties.

How do sensor reflectors work?

Sensor reflectors are mounted in a position that allows the beam of light produced by the emitter in the sensor to bounce off the sensor reflector and return to the receiver in the sensor housing. When the beam is obstructed, it alters the output signal in the sensor, commonly triggering an alarm.


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Description Price Shape For Use With Diameter Length Width Dimensions
RS Stock No. 818-4131
Mfr. Part No.E39R7
BrandOmron
PHP811.68
Each
units
Round Photoelectric Sensors with and without M.S.R.*1 84 mm - 7.4mm 84 (Dia.) x 7.4 mm
RS Stock No. 818-4134
Mfr. Part No.E39R8
BrandOmron
PHP900.94
Each
units
Square Retro Reflective Photoelectric Sensors with M.S.R, Retro Reflective Photoelectric Sensors without M.S.R - 100mm 100mm 100 x 100 mm
RS Stock No. 326-7262
Mfr. Part No.E39R4
BrandOmron
PHP1,370.64
Each
units
Rectangular E3T Models - 23mm 13.7mm 23 x 13.7 mm
RS Stock No. 822-4544
Mfr. Part No.E39-RS3
BrandOmron
PHP2,017.75
Each
units
Rectangular E39 Series Photoelectric Sensors - 80mm 70mm 80 x 70 mm
RS Stock No. 831-5984
Mfr. Part No.E39-R21
BrandOmron
PHP1,285.65
Each
units
Rectangular E3NC Series - 35mm 30mm 35 x 30 mm
RS Stock No. 818-4143
Mfr. Part No.E39R3
BrandOmron
PHP751.82
Each
units
Rectangular Retro Reflective Photoelectric Sensors with M.S.R, Retro Reflective Photoelectric Sensors without M.S.R - 22.5mm 38mm 22.5 x 38 mm