Breather room wide applicability: Minimize energy waste and safety concerns with smart notifications. Ideal for refrigerators, air conditioners, safes, and security doors, it offers versatile and secure management so you stay in control. Precise door sensor: Uses intelligent detection and built‑in sensors to monitor the state of doors or windows. If a door or window is opened, a voice notification alerts you, reducing the risk of forgotten openings. A practical solution to improve home security and prevent hazards. The Freezer Door Alarm helps keep your environment safe. Easy to install: Adjustable volume settings and multiple mounting options in a user friendly design that enables a seamless setup without technical know how for your freezer door alarm. Energy saving solution: A cost effective choice for eco conscious users. The energy saving design minimizes power consumption during daily use and helps lower long term energy costs. This innovative freezer compartment alarm is ideal for those seeking a practical and sustainable solution without compromising efficiency. Use scenarios: - Fridge or freezer door left ajar, protecting food safety and reducing energy waste. - Safe or security door needs monitoring to prevent unauthorized access. - HVAC or room access door left open, avoiding unnecessary energy use and comfort loss.