This window door alarm is specifically designed for home security, effectively preventing break-ins by intruders and ensuring the safety of you and your family, as well as protecting your property. Door window alarm sensors are widely applicable in various settings such as pool,home, stores and office, enhancing the security of your living environment.The device features high sensitivity; it immediately triggers a loud alarm if it detects that a window or door has been illegally opened, deterring potential intruders.Easy Installation:The installation process of door alarms are simple and quick. Just remove the backing paper from the 3M double-sided tape and adhere it to the designated location. The strong 3M adhesive of window alarms ensure the device remains securely in place without falling off.Accurate and Reliable:It accurately detects changes in the status of windows and doors, minimizing false alarms. The adjustable volume control of door open sensor alarm allows users to set the alarm sound level(125dB/100dB) according to their needs, making it suitable for different environments.Long-lasting Battery:Powered by a high-performance LR44 button battery, it provides stable power for up to 12 months, reducing the hassle of frequent battery replacements and promoting energy efficiency.Application of door open alarm:1.Door alarms for home security: Install on doors and windows to ensure safety during nighttime when family members are resting.2.Commercial Premises: Provides security protection for stores, warehouses, and other business locations during non-operational hours.3.Door alarms for kids safety/dementia patients: Helps monitor and protect the safety of elderly individuals or children within specific areas.4.Door/Window Alarms for Travel Safety: Offers security for temporary accommodations during business trips or vacations.5.Multiple Applications:freezer/hotel/garage/travel/refrigerator/sliding/pool/front/toddler/wireless door alarms/window alarms.