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  2. Back-up beeper - Wikipedia

    en.wikipedia.org/wiki/Back-up_beeper

    A back up beeper warns of a garbage truck backing up as it works its way around a cul-de-sac. A white-noise back-up beeper provides a less disruptive alert than the original pure-tone alert. A back-up beeper, also known as back-up alarm or vehicle motion alarm, is a device intended to warn passers-by of a vehicle moving in reverse.

  3. Preco - Wikipedia

    en.wikipedia.org/wiki/Preco

    Preco Electronics Inc is a multinational vendor of radar-based object detection systems headquartered in Boise, Idaho, United States.. Preco was founded in 1947 by Edwin R. Peterson as a rebuilder of electronic water pumps, generators, and batteries [1] and introduced the first reverse-motion alarm in 1967.

  4. Car alarm - Wikipedia

    en.wikipedia.org/wiki/Car_alarm

    A car alarm is an electronic device installed in a vehicle in an attempt to discourage theft of the vehicle itself, its contents, or both. Car alarms work by emitting high-volume sound (often a vehicle-mounted siren, klaxon , pre-recorded verbal warning, the vehicle's own horn, or a combination of these) when the conditions necessary for ...

  5. Motion detector - Wikipedia

    en.wikipedia.org/wiki/Motion_detector

    A motion detector attached to an outdoor, automatic light. A motion detector is an electrical device that utilizes a sensor to detect nearby motion (motion detection).Such a device is often integrated as a component of a system that automatically performs a task or alerts a user of motion in an area.

  6. Unattended ground sensor - Wikipedia

    en.wikipedia.org/wiki/Unattended_ground_sensor

    The gateway bridges U-UGS sensor field to the FCS network and relays motion alarm and image data. It's capable to be monitored locally by a soldier or remotely through a FCS network enabled modulevehicle. The intrusion node is a motion sensor that detects movement and is able to tell the difference between animal and human beings.

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