Feature(may vary by option.)

●Versatile Compatibility: Our door sensor is compatible with all smart locks that can work with TT Lock/Next Lock App, such as Hornbill Smart Lock. The max induction distance of the door sensor is 22mm (0.86 inches).
●Quick and Easy Installation: Installation is a breeze as all necessary accessories are provided. Enjoy the convenience of our door sensor without any hassle.
●Stay Informed via Instant App Notifications: By pairing the smart security sensor with TT Lock or Next Lock app, you can receive real-time notifications whenever the door is opened or closed. Check your door status, alarm records, and battery level anytime, anywhere.
●2.4 GHz WiFi Connection Only: Our smart door sensor only works with a 2.4G WiFi network. If your router only supports 5G, our device cannot connect.
●After-sales Service: Our smart door sensor is backed by a 30-day return, 1-year warranty, and lifetime technical support. Enjoy peace of mind with your purchase.

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Description

Door Sensors for Home Security, Door Sensor Detectors, Door Open Contact Sensor