Magnetic Reed Switch Door Sensor

Build a raspberry pi door window sensor with reed relais. These packages offer resistance to mechanical stress by protecting the bare glass of the reed switch. It does not matter which of the two cables of the magnetic switch is connected to the base of the transistor.

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Magnetic reed switch door sensor.

Bnyzwot mc 38 surface mount wired nc door sensor alarm magnetic reed switch white 10 pair. 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. A more sophisticated design. Please donate if you like my material.

The original elwood reed switch patent as pictured above. Get it as soon as thu oct 1. For pricing and availability. Free shipping on your first order shipped by amazon.

4 0 out of 5 stars 18. 2x magnetic reed switch normally open closed nc no door alarm window security magnetic door switch magnetic contact switch reed switch to dc 5v 12v 24v light black 4 1 out of 5 stars 20 9 99 9. In its simplest and most common form it consists of a pair of ferromagnetic flexible metal contacts in a hermetically sealed glass envelope. When i tested the switch yesterday i learned that in the case of a magnetic reed switch the word quot normal quot.

Ring alarm window and door contact sensor 2 pack 2nd gen item 2221347. However for an application such as a door security sensor the reed switch needs a protective shell housing for handling and mounting. The free end should be attached to the window door and the one with cable best to the fixed door window frame. For pricing and availability.

The contacts are usually normally open closing when a magnetic field is present or they may be. And charlie dwain mariner july 26 1977. A switch with one magnetic reed and one non magnetic one. A bare reed switch can easily be mounted on circuit boards.

Push button switch by angelo de falco november 1 1966. Magnetic reed switch by b. Refers to the time when the magnet is not near the switch. The reed switch is an electrical switch operated by an applied magnetic field it was invented at bell telephone laboratories in 1936 by walter b.

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