Freezer Door Alarm is a multipurpose alert device designed to reduce energy waste and increase safety with reliable, consistent performance. It works with refrigerators, security doors, air conditioners and safes to meet daily needs. - Intelligent detection system with built-in sensors delivers voice notifications when a door or window remains open, helping create a safer, more comfortable living environment. The system is designed to ensure no alarm is overlooked. - Easy to install with adjustable volume. No technical knowledge is required, making setup quick and user friendly. - Energy-saving design minimizes power consumption during daily use and helps reduce energy costs over time. This practical, sustainable solution does not compromise on efficiency. - Suitable for daily monitoring of doors in homes and offices, providing dependable alerts for freezer, refrigerator, security doors and safes. Use scenarios: - In the kitchen or pantry, keep an eye on the refrigerator or freezer door to prevent energy waste and temperature loss. - At home or in an office, monitor safes or security doors to receive timely voice alerts if they are left open. - Near air conditioning setups, stay informed when doors or windows remain open to maintain comfort and efficiency.