- Multipurpose energy saver and safety assistant: smart alerts help reduce energy waste and increase safety. Compatible with refrigerators, security doors, air conditioners and safes, delivering reliable performance for daily needs. - Reliable status monitoring: uses accurate tracking technology to check opening and closing of doors or windows. If a door is left open, the device issues a voice warning to prompt action, ensuring continuous safety. The Freezer Door Alarm is a practical addition to any household. - Quick installation: easy setup with multiple mounting options. No technical knowledge required and the design is user friendly, with adjustable volume to suit personal preference. - Environmentally friendly and cost effective: minimizes power consumption while helping households reduce their carbon footprint without sacrificing comfort or functionality. - Use scenarios: prevent energy waste and protect perishables by wiring the freezer door to alert you if it’s ajar; monitor entry doors or safes to receive a timely voice warning if opened unexpectedly; support energy management for homes with multiple cooling devices by reminding you to close doors and conserve power.