Key benefits Fast, reliable detection: sensitivity sensor provides timely detection of unauthorized entry so you can respond quickly. Multipurpose protection: works as a door alarm, window alarm, doorbell chime or pooldoor alarm to secure different access points. Peace of mind for people and property: helps protect loved ones, belongings, and commercial displays with audible alerts. What it does Detects door or window opening and triggers an audible door alarm bell or doorbell chime to warn occupants and deter intruders. Acts as a versatile window sensor and door alarm sensor for home, retail, or poolside doors. Designed for use in a wide range of environments to provide flexible protection against unauthorized access. Key attributes Material: ABS construction. Function: sensitivity contact sensor that activates an audible alarm when a door or window is opened. Modes: door alarm bell and doorbell chime functionality; can be used as window alarm for stores and pool alarms for doors. Performance: sensitive and timely alarm response to help ensure safety and security. Practical applications 1. Home entry points: install on front or back doors to sound an alarm when doors are opened, improving home security and alerting residents immediately. 2. Child or pool safety: place on doors leading to pool areas or children's rooms to reduce the risk of unsupervised access and provide an audible alert for caregivers. 3. Small retail or display protection: use as window alarm sensors for store windows or stockroom doors to deter theft and protect inventory. Why customers choose it Simple, focused protection across doors and windows without complex setup. Flexible use cases—suitable for homes, pools, and small commercial settings. Clear audible alerts help prevent unauthorized access and protect people and property. Includes: ABS material; sensitivity sensor; door alarm bell / doorbell chime operation; applicability as window sensors, door alarm sensors, and pool alarms for doors.