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The PIR sensor is typically mounted on a printed circuit board containing the necessary electronics required to interpret the signals from the sensor itself. The complete assembly is usually contained within a housing, mounted in a location where the sensor can cover the area to be monitored.
PIR sensors identify abrupt changes in temperature at a given point. As an intruder walks in front of the sensor, the temperature at that point will rise from room temperature to body temperature and then back again. This quick change triggers the detection. PIR sensors designed to be wall- or ceiling-mounted come in various fields of view ...
C-Bus is a communications protocol based on a seven-layer OSI model for home and building automation that can handle cable lengths up to 1000 metres using Cat-5 cable. It is used in Australia, New Zealand, Asia, the Middle East, Russia, United States, South Africa, the UK and, other parts of Europe including Greece and Romania.
A Knox Box is a small, wall-mounted safe that holds building keys for fire departments, emergency medical services, and sometimes police to retrieve in emergency situations. [ 1 ] [ 2 ] The term "Knox-Box" is a brand name for such products produced by the American company Knox Associates, which does business as The Knox Company.
Wireless light switches eliminate the wire from the light to the switch location. This is useful in remodelling situations where new wiring can be a hassle. Rather than tearing down a wall to gain access to the wires, a wireless switch can be used. This avoids any need to access wires and makes remodelling fast and simple.
Abbi Jacobson is starstruck by Lisa Kudrow — even after working together. The No Good Deed actress, 40, plays Leslie Fisher in Netflix's new dark dramedy alongside Kudrow, 61, as Lydia Morgan ...
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