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Matched 40 kHz transmitter/receiver pair of transducers detects movement at over 7 meters. A sensitivity control is provided. The transmitter is crystal-locked at 40kHz for maximum efficiency. 9V - 12V DC operation (power supply recommended). "FALL SALE!"
Read product sheet PDF. Read transducer data sheet PDF. View transducer image. Need a power supply? Get the #4_0016.
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