How Do Ring Window Sensors Work
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- Smart Home
How does a window sensor work?
Window sensors are a critical part of any home security organization. When cameras fail, a window sensor becomes your last line of defence. Install them on all your windows, and y'all volition know when an intruder attempts to access your firm using one of your windows.
Some window sensors use loud chimes or siren-like alarms, while others transport a notification to your phone. Regardless of how they alert you, most window sensors work the aforementioned way. Knowing how these window sensors work will help you install them properly, so they don't fail you lot when you demand them the most.
What is a window sensor?
A window sensor packet is composed of 2 small units with agglutinative backing or screws for mounting. Ane unit attaches to the window, and another unit affixes to the stationary window frame. The two sensor units typically are positioned close together in a location on the window where they cannot be seen or tampered with from the outside. One time the sensors are activated, an alarm will sound, and alerts will be sent out when the window is opened. Information technology's not an always-on grade of security. Most window sensors have a switch that lets you turn them off, so yous tin open your windows without triggering the alarm.
Magnetism is primal
Window sensor alarms may seem sophisticated, but they are surprisingly simple. At their cadre, window sensors rely on magnetism and a basic electronic switch. Remember how we said there were 2 units in a window sensor package? They each serve a different purpose. The window-based unit contains a small magnet that interacts with the reed switch and security system inside the window frame unit. The magnet is a trigger that controls the switch inside the window frame unit. It is this reed switch that turns on and also turns off the security system. This security system can be as simple as a loud audible alarm or equally complex every bit a wireless module that alerts your smartphone.
What is a reed switch?
Yous may take never heard of a reed switch, but you likely use one every mean solar day. If you lot have a laptop that turns on when you open up it and turns off when y'all close it, there likely is a reed switch and magnet somewhere in the casing. Kindles, iPads, and other tablets as well use a reed switch that interacts with a magnetic cover to plow the display on and off. Reed switches are plant in everything from dishwashers to atmospheric condition anemometers. They were first invented in the 1930s by Walter B. Elwood of Bell Laboratories.
The reed switch is a relatively simple but very effective switch. Information technology is composed of ii or more flat ferrous reeds that are magnetized. These reeds are enclosed inside a glass sheathing filled with an inert gas that helps to keep them free from external contaminants and corrosion. These reeds motility closer to each other and eventually make contact in the presence of a magnet. They then pause autonomously when the magnetic field is moved abroad. These reeds move slowly and smoothly, making contact forth their flat surface. It's this wearisome and secure contact that makes the reed switch and then reliable and long-lasting.
How the reed switch works in a window sensor
The reed switch is the core component in a window warning. When the window is closed, the magnet causes the reeds to move together until they affect. When the reeds are in contact with each other, they complete the electric circuit inside the window sensor, allowing electricity to flow in a continuous loop. When the windows open, the magnet moves away, and the reeds pause apart. This opens the excursion, which halts the electric electric current and triggers the security system within the window sensor. The security arrangement then sounds an alarm or sends out alerts.
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Source: https://www.digitaltrends.com/home/how-does-window-sensor-work/
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