Insiders Wired Door Sensor: Magnetic switch operation
Think of it as the silent sentinel of your home: the Wired Door Sensor. This unassuming gadget is a magnetic switch that knows when a door or window opens or closes, instantly setting off an alarm to warn of any unwanted entry. It operates on a Normally Closed (NC) setup, which is tech-speak for "it keeps a circuit closed when things are shut tight, and breaks it when they're not"—a simple, reliable trick that plays nice with most home alarm systems.
Built like a tiny tank, it's dustproof and waterproof, shrugging off the elements whether mounted indoors or out. Homeowners love it for guarding front doors, back windows, or any spot that needs a watchful eye. Just stick it on with proper alignment between the sensor and its magnet, and you're golden. The wired design means no fuss with batteries—just plug it into your alarm system, and it becomes a no-nonsense part of your security squad. No fluff, just function.
Features
- NC (Normally Closed) design
- Dustproof and waterproof
- Home antitheft alarm compatibility
- Easy installation
- Magnetic switch operation
General specs
- Brand: Insiders
- Seller: Joom
- ID: 68a83f6df3d3bf010265950a
- Type: Wired
- Operation: Magnetic switch, NC (Normally Closed)
- Protection: Dustproof, Waterproof
- Application: Home doors, Windows, Antitheft alarms
- First listed by seller: 8/26/25
If you are interested in more details, you can find full information on the seller's page.
View on seller's site
#publicidad
$11.39
Last price update: 12/6/25
Available to order
Price History for seller Joom
Shipping options
Delivery to 
United States
United States
Unavailable
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Wired Door Sensor Magnetic switch operation
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| Brand | Insiders | BITIWEND | SECRUI | METAK | Tuya | |
| Model | AUB08YDRN3X9 | M508+D7 | DC_M520+D015-B | DWS09 | ||
| Color | ||||||
| Rating |
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| Price | $11.39 | $19.99 | $29.99 | $15.99 | $21.79 | $18.99 |
| Seller | Joom | Gshopper | Amazon | Amazon | Amazon | Gshopper |
| Update | December 6, 2025 | July 25, 2024 | December 6, 2025 | December 6, 2025 | December 6, 2025 | July 25, 2024 |
| Item Weight | 7.8 ounces | 5 ounces | 4.6 ounces | |||
Wired Door Sensor
$11.39
