EFR-RCB40K5

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Precision ultrasonic ceramic sensor receiver operating at a 40 kHz center frequency. | 16mm Round Metal Can | Legacy ultrasonic remote controls, distance-measuring tools, industria l proximity alert arrays. | EFR-RCB40K5 | None | None | EFR-RSB40K5, EFR-RDB40K2, Jameco 2120268 | Ultrasonic Break-Beam Security Counter: Aligned directly opposite a continuous 40 kHz transmitter across a narrow corridor to pull a line low and trigger a counter whenever someone walks past and breaks the acoustic link. [1] Show more