Reed switches have been used in laptops to put the laptop into sleep hibernation mode when the lid is closed.
Magnetic reed switch door sensor.
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Reed switches actuated by magnets are commonly used in mechanical systems as proximity sensors.
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In the customer s garage door detector he should use the normally closed nc contacts which are open when the garage door is closed and the magnet is near the switch.
These sensors are typically mounted in mechanical systems.
Examples are door and window sensors in burglar alarm systems and tamperproofing methods.
4 1 out of 5 stars 16.
However for an application such as a door security sensor the reed switch needs a protective shell housing for handling and mounting.
Bnyzwot mc 38 surface mount wired nc door sensor alarm magnetic reed switch white 10 pair.
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Introduction to reed switches magnets and magnetic fields by stephen day.
Tatoko magnetic reed switch normally open closed nc no door alarm window security 6sets.
Normally closed reed switch by anthony j.
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When i tested the switch yesterday i learned that in the case of a magnetic reed switch the word quot normal quot.
Describes various ways of making a normally closed switch.
A bare reed switch can easily be mounted on circuit boards.
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Refers to the time when the magnet is not near the switch.