Energy saving and smart reminders help prevent risk and waste. This device is designed to work with air conditioners, refrigerators, safes and security doors to ensure optimal function and increased attention in different environments. Reliable status monitoring: it uses accurate tracking technology to check the open or closed condition of doors or windows. If a door is left open or opened unintentionally, the device provides a voice warning to improve safety. Continuous monitoring adds peace of mind at home and makes the freezer door a practical addition to everyday life. Easy setup: simple configuration with multiple mounting options and a user friendly design that requires no technical skills. The volume of the freezer door alarm is adjustable to suit different rooms and preferences. Environmentally friendly system: the alarm minimizes power consumption and offers a practical, cost effective solution for households looking to reduce their carbon footprint. You can improve safety and convenience without sacrificing comfort or performance. Use cases: - In the kitchen, monitor fridge or freezer doors to prevent spoiled food and reduce energy use; audible alerts help you close doors promptly. - At home or in a safe room, keep track of security doors or safes with readable voice warnings for added safety. - In offices or storage areas, monitor entry doors to prevent waste and enhance security while away from the space.