About This Never miss a door left open – Get loud local alarms plus real-time text messages and app notifications when a refrigerator or freezer door is left open, even if you’re in another room or away from home. Perfect for garages & basements – Ideal for locations where you can’t hear a normal alarm. Prevent food loss from garage freezers, basement fridges, or secondary refrigerators. Custom alert delay & volume – Set how long a door must stay open before alerts trigger. Choose loud alarms, gentle reminders, or chime mode to match daily use. WiFi required (2.4 GHz) – Uses your home WiFi to send notifications. Push notifications are always free and unlimited. Includes 10 free SMS texts per month (no subscription). Works on many door types – Compatible with refrigerators, freezers, garage fridges, pool doors, gates, and cabinets. Designed to handle wide door gaps and misalignment. Smart home & US-based support – Supports Google Home announcements and IFTTT (IFTTT Pro required). Designed, supported, and assisted by a real US-based team. Overview Color : white Brand : Arka Power Source : Battery Powered Compatible Devices : Smartphone Product Dimensions : 1.61"L x 0.7"W x 3.69"H