●Magnetic door window alarm sensor 130dB alerts a person to a door or window opening.
●Prevent children going out the house without notice. Also ideal entry warning for your home, office, apartment, garage and so on.
●Ultra-thin door and window alarm with 2 adjustable settings (off/on).3*LR44 batteries included.
●Easy installation, No wiring needed! No screws needed! Included double sided tape!
●Ultra-sensitive also Low battery indicator to check battery life.
