ENERLITES Motion Sensor Switch with LED Backlight, PIR Sensor, Motion Sensor ...
$28.99
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Sensor Optek OPB253A
$55.00
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About this item
The OPB253A is an infrared reflective object sensor (or photo-reflector) originally manufactured by Optek Technologies (now part of TT Electronics). It is designed to detect the presence of an object by emitting an infrared light and measuring the reflection bouncing back from a surface.
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