WiFi Door Sensor Chime, Smart Door Open Alert Window Sensor for Business/Home/Kids Safety, Real-Time App Notification, 500ft Range, 32 Melodies, 5 Volume Levels, Window Contact Sensor Alarm Kit White 3 sold2026 The needle bar is made

The needle bar is made of high quality carbon fiber material

and effective service while ensuring long term use

You can also put in mobile phones and credit cards

-[Easy Installation]: Comes with screws

experimental measurement

WiFi Door Sensor Chime, Smart Door Open Alert Window Sensor for Business/Home/Kids Safety, Real-Time App Notification, 500ft Range, 32 Melodies, 5 Volume Levels, Window Contact Sensor Alarm Kit White 3 sold2026 The needle bar is madeWiFi Door Sensor Chime, Smart Door Open Alert Window Sensor for Business Home Kids Safety, Real Time App Notification, 500ft Range, 32 Melodies, 5 Volume Levels, Window Contact Sensor Alarm Kit Product Features Real Time App Alerts for Safety Monitor your home from anywhere via the Tuya Smart Life App. Perfect for child safety and dementia carereceive instant push notifications the moment a door or window is opened. Loud Chime for Business & Home