Make your home safer - This is a brand new door and window alarm. It alerts in time when a stranger enters or a child opens doors and windows to protect the valuables in your home from damage and increase the safety of family members. 5 alarm modes: every time you press the "SET" button, you can switch an alarm mode. There are 5 alarm modes: burglary alarm, doorbell, 30 seconds alarm, di-di break-in alarm, delay alarm mode to meet your needs in different situations. For different types of alarm sounds, the volume can be adjusted in 3 levels from 100 to 130 decibels. Sensitive and energy-saving: the door alarm has a built-in high-sensitivity sensor. If the distance between the alarm and the magnetic strip is more than 15 mm, an alarm will sound. This intelligent alarm is powered by 3 powerful LR44 batteries that provide a long standby time of up to 12 months. With the automatic detection function for low battery, a "Di-Di-Di" alarm sounds to remind you to replace the battery Easy to use and install: ready to use, with double-sided tape included. Our alarm can be equipped with magnetic induction on both sides, which is more convenient than a one-sided magnetic induction alarm. No wiring required. No screws required. More application scenarios - The application scenarios of this intelligent door and window alarm exceed your imagination. You can install it in your bedroom, bathroom, garage or office, or you can install it on a medicine cabinet, refrigerator, cabinet or safe.