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Ultrasonic Proximity Sensor
Kit combines an ultrasonic sender and receiver, mounted on the same PC board, to detect the presence of large objects. Use as a proximity alarm or as vehicle back up alarm. Range is adjustable from 4~32". Sensitivity is adjusted via board mounted potentiometer, LED lights when object is detected. Requires 9~12VDC, 120mA. Board measures 21/4" (W) x 13/4" (D) x 3/4" (H). Includes all components, assembly required.