SanJie Door Left Open Alarm & Door Chime, Instant/30s/1min/2min Delay Sensor,27 Chimes,Silent-110dB,Battery Door Window Alarm for Kids Safety,Business Office Home, Fridge Freezer Garage Pool,2 Sensors

Know When a Door Opens or Stays Open: Use it as an instant entry chime, repeating door alarm, or delayed door left open reminder for home, office, garage, fridge, freezer, window, store, pool, basement door, back door, or front door
Instant Door Chime Alerts for Kids,Home, Business: Instant mode lets you hear when a door opens, working as a door chime, door alarm, or entry chime for home, business, commercial, and office use. Ideal for monitoring kids, seniors, dementia care, pets, customers, employees, or restricted areas like basements, garages, balconies, pool gates, and tool rooms
Fridge & Freezer Delay Door Alarm: Choose 30s, 1min, or 2min delay to avoid annoying beeps while loading groceries, then get alerted if the fridge, freezer, cabinet, or door is accidentally left ajar. This door left open alarm helps reduce spoiled food, freezer defrosting, cold air loss, energy waste, and temperature changes caused by doors not fully closing
Peel, Stick & Ready in Minutes: No tools, wiring, or complicated setup required. Insert the included AAA batteries, align the door sensor and magnet, peel off the adhesive backing, and stick it in place.After mounting, simply turn it on, choose your preferred volume and mode, and this alarm is ready to use
27 Chimes & 5 Volume Levels up to 110dB: Choose from pleasant chimes, voice reminders, or loud alarm sounds to match your needs. The adjustable volume ranges from Silent LED alert to 110dB, letting you use it as a quiet visual reminder, a gentle door chime during the day, or a loud door security alarm at night
Door Alarm Sensor with Low Battery Alert: This door alarm is powered by 2 AAA batteries with up to 12 months of battery life,and features a low-power indicator to remind you when the batteries need replacing. Designed for home, business, office, fridge, freezer, garage, pool gate, window, and door safety use
No WiFi, No App, No Subscription: A simple standalone local alert system with no phone pairing, no smart hub, and no monthly fees. Ideal for users who want a reliable sound alert without complicated technology