Most hardwired alarm systems use a magnetic reed switch on each door and window.
Magnetic contact reed switch for door window security alarm system.
This is the most common way for a door and window sensor to operate.
These come in many styles to match the wide variety of doors and windows available but all operate on the same principal.
Magnetic contacts magnetic sensors.
Reed switches consist of two metal strips sealed inside a glass tube and attached to external wire leads.
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Magnetic reed switches are the most common devices used in modern alarm systems.
Magnetic sensors use a sensitive reed switch that is triggered when the magnet is moved close or away from the reed.
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The door position switches operate with a built an internal magnetic reed switch that closes when the opposing magnet comes within of the door sensor.
Like the name implies a door and window sensor is used to monitor a door or a window and let an alarm system know when it has been opened.
These are the door contact sensors that are in use with any and all commercial or residential card access systems as well as all security burglar alarm system.
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They are typically known as magnetic contacts magnetic sensors or door switches.
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An electrical circuit is closed when a magnet is near the switch indicating the opening is shut.
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These wired sensors are typically used with alarm access control and automation systems for doors windows man doors overhead doors safes or gates.
Also referred to as magnetic sensors or contacts these devices tell a security panel when a door or window is open or closed.