High-Sensitivity Vibration Detection: Equipped with advanced technology to detect vibrations from attempted break-ins, ensuring immediate alarm activation. Loud 125dB Alarm: The sensor emits a powerful 125dB alarm when glass breakage or forced entry occurs, serving as an effective deterrent against burglars. Easy Installation: No tools required, simply attach the sensor to any window or door with the included adhesive tape, making setup quick and hassle-free. Compact and Discreet: Designed to be small and unobtrusive, it does not interfere with home decor and is hardly noticeable to anyone but you. Perfect for : Ideal for homes, apartments, dorms, offices, and more, providing peace of mind with robust protection against theft. Color: Black Material: plastic Package Contents: 1 x Vibration sensor alarm Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.