- Powerful Alarm: The door open-close detector emits a loud 130dB alarm, ensuring that you and those nearby are alerted instantly when a door or window is opened. This feature enhances security by drawing immediate attention to potential intrusions. - Reliable Detection: This window door sensor accurately monitors the opening and closing status of doors and windows. It triggers an alarm upon detection of unauthorized openings, providing peace of mind for your home or business. - Long Battery Life: Equipped with three LR44 button batteries, this window security alarm is designed for low power consumption, ensuring long standby times and reliable performance without frequent battery replacements. - Versatile Usage: Ideal for various environments, this window alarm sensor is suitable for homes, offices, shops, stores, warehouses, and garages. Its compact design allows for easy installation in multiple locations, making it a versatile security solution. - Practical Applications: 1. Home Security: Use it to secure your windows and doors, ensuring that you are immediately alerted if an entry point is breached. 2. Office Safety: Protect sensitive areas in your workplace, deterring unauthorized access during or after business hours. 3. Store Protection: Install it in retail environments to safeguard against theft and ensure customer safety. This door open-close detector combines effective security features with user-friendly design, making it an essential addition to your safety measures.