Know the moment it opens.
Door & Window Sensor
$19
A two-piece magnetic contact sensor for doors and windows.
1
24 left in stockOverview
One half goes on the frame, the other on the door or window. When they separate, the base station knows instantly. Use it for entry alarms, or just for a chime when the back door opens.
In the box & care
In the box: sensor, magnet, CR2032 battery, adhesive strips, screws, quick-start guide.
Care: clean the surface with alcohol before sticking. Replace the battery when the app prompts you.
Specifications
- TypeMagnetic contact
- GapUp to 2 cm
- PowerCR2032, up to 3 years
- RangeUp to 150 m from base station
- UseIndoor
- Size6.4 x 2.5 x 1.3 cm
- RequiresSentrava Base Station
Pro installation
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Reviews
5.0 out of 5
1 review
Right option say reviewers
- Right option
Bought eight, all still going
On every door and ground-floor window for months now. Not one false alarm, and the app tells me straight away if someone leaves the back door open.
Noor H. · Sep 30, 2026
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