5Pair White MC-38 Wired Door Window Sensor Magnetic Switch Home Alarm System

Condition: New
Approx.

£2.41

+ £2.31 postage
US $3.12
Est. delivery Fri, 6 Dec - Tue, 17 Dec
Long-time member
25 sold
Returns
Accepted within 60 days
Buyer pays return postage
Payments

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About this item

Condition
New
Quantity
25 sold
More than 10 available
Brand
Unbranded/Generic
Model
EAN
Does Not Apply
MPN
MC-38

Item description

"There are two types of reed switches: "normally open" reed switches and "normally closed" reed switches. A normally-closed reed switch is closed when it is not near a magnet; as a magnet is brought close to it, a normally-closed switch will open."
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