A wireless door alarm helps alert you when someone opens a door. The alarm activates when the door opens more than 0.6 inches. Easy to install on doors, windows, or other areas you wish to monitor, such as homes, offices, stores, apartments, dorms, cabinets, drawers, or garages. This alarm can help notify you in various situations, including: - Customers entering your shop - Children opening doors to pools, windows, closets, or refrigerators, or leaving their room unexpectedly - Pets entering or exiting unexpectedly - Unauthorized entry into your home or garage - Attempts to open secured areas such as cabinets The alarm emits a 130 dB sound, which can be heard clearly even if you are in another room or up to 750 feet away. Includes a remote control for operation within 50 feet. Designed for low power consumption, allowing up to one year of standby time. Features a low battery alert to notify you when it's time to replace the battery. Package includes: Magnetic sensor * 1 Remote control * 1