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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.
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. [citation needed]
A PIR motion detector used to control an outdoor, automatic light. A camera trap with PIR motion detector. An indoor light switch equipped with PIR-based occupancy sensor [1] A PIR-based motion detector is used to sense movement of people, animals, or other objects. They are commonly used in burglar alarms and automatically activated lighting ...
LED Under Bed Lights Motion Sensor. Motion sensing under bed lights eliminate the need for having to get up and flip off a light switch, or having to keep a controller near your bed to turn off ...
Closed-circuit, or CCTV cameras, stream through wired or wireless links. [9] These cameras stream live footage to users, allowing them to watch for suspicious activity. Current cameras feature abilities such as motion detection and two-way audio, allowing users to receive notifications of activity and speak and listen through the camera.
A complete sensor consists of a motion detector, an electronic control unit, and a controllable switch/relay. The detector senses motion and determines whether there are occupants in the space. [9] It also has a timer that signals the electronic control unit after a set period of inactivity.
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