Magnetic Contact Reed Switch Door Window Sensor Entry Security Alarm N/C MC-38
USD 4.22 USD
Specifications
| Amount | 5Pairs |
| Brand | Unbranded/Generic |
| Model | MC-38 |
| Type | Window Sensor |
There are two types of reed switches: "normally open" reed switches and "normally closed" reed switches. Normally closed reed switches are closed when not near a magnet; when a magnet is near it, the normally closed switch will open.
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