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  2. Driveway alarm - Wikipedia

    en.wikipedia.org/wiki/Driveway_alarm

    The sensor is used to detect people or vehicles on the driveway and the receiver is the device which alerts the user or owner to this detection. Wireless driveway alarms consist of three components, the sensor, receiver and a transmitter which sends the wireless alert signal to the receiver.

  3. Security alarm - Wikipedia

    en.wikipedia.org/wiki/Security_alarm

    Driveway alarm systems can be combined with most security and automation systems. They are designed to alert residents to unexpected visitors, intruders, or deliveries arriving at the property. Types of driveway sensors include magnetic and infrared motion sensors. Driveway alarms can be found in both hard-wired and wireless systems.

  4. 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.

  5. Optical wireless communications - Wikipedia

    en.wikipedia.org/wiki/Optical_Wireless...

    Short range: wireless body area network (WBAN) and wireless personal area network (WPAN) applications under standard IEEE 802.15.7, underwater communications. [10] [11] Medium range: indoor IR and visible light communications (VLC) for wireless local area networks (WLANs) and inter-vehicular and vehicle-to-infrastructure communications.

  6. Wireless sensor network - Wikipedia

    en.wikipedia.org/wiki/Wireless_sensor_network

    Wireless sensor networks (WSNs) refer to networks of spatially dispersed and dedicated sensors that monitor and record the physical conditions of the environment and forward the collected data to a central location. WSNs can measure environmental conditions such as temperature, sound, pollution levels, humidity and wind.

  7. List of sensors - Wikipedia

    en.wikipedia.org/wiki/List_of_sensors

    Crankshaft position sensor (CKP) Curb feeler; Defect detector; Engine coolant temperature sensor; Hall effect sensor; Wheel speed sensor; Airbag sensors; Automatic transmission speed sensor; Brake fluid pressure sensor; Camshaft position sensor (CMP) Cylinder Head Temperature gauge; Engine crankcase pressure sensor; Exhaust gas temperature ...

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