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Smart Indoor Camera: launched in 2015, it is equipped with facial-recognition technology. In real time, it alerts its user in the event of an intruder entering their home. [17] Smart Outdoor Camera: launched in 2016, this camera distinguishes between people, animals and cars. In real time, it alerts its user in the event of an intruder setting ...
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. Home surveillance cameras used for security purposes have become more accessible, but have sparked security concerns from consumers.
Wireless security cameras function best when there is a clear line of sight between the camera(s) and the receiver. If digital wireless cameras are outdoors and have a clear line of sight, they typically have a range between 250 and 450 feet. If located indoors, the range can be limited to 100 to 150 feet.
They are much like civilian drones that you can purchase at Best Buy, and they are always unarmed. Their main purpose is for video surveillance. In the U.S., over 1,400 police departments use drones.
Normally, light from the light source shoots straight across and misses the sensor. When smoke enters the chamber, it scatters the light, which then hits the sensor and triggers the alarm. Photoelectric smoke detectors typically respond faster to a fire in its early, smoldering stage, before the source of the fire bursts into flames.
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