See the best-selling sensors →

Door / Window Sensors

Smart alerts

Know the instant a door or window opens

Real-time phone alerts for every entry point. Browse other alerts:

Real customer reviews Genuine products & authorized seller 6-month local warranty 14-day returns
All categories Smart Sensors27
All brands Sonoff54
Under 20 $ 20 $ – 50 $ 50 $ – 100 $ 100 $ – 200 $ 200 $+ Any price
In stock only