About This

• 【Door Chimes when Door Opens】Whether you are relaxing at home or busy around the house, this door sensor chime alerts you the moment a door opens. If a child opens a bedroom door or a loved one with dementia tries to leave, you will hear a clear chime right away—helping you stay aware of their movement, respond quickly, and feel more at ease.
• 【Door Alarms when Opened】When you are away from home or asleep at night, this door alarm sensor helps alert you when a door or window is opened unexpectedly. It can trigger a loud alarm up to 110dB to help discourage potential intruders, while also sending a notification to your phone—so you can take action quickly and add extra protection for your family and property.
• 【Door Left Open Alarm】Use delay mode to remind you when a door is left open. During normal entry and exit, it stays silent, so it won’t disturb your daily routine. If the door is still open after the preset delay, the alarm will sound to remind you to close it—helping prevent security issues caused by a door being left open, whether you are stepping into the storage room, garage, or back yard.
• 【2.4GHz Wi-Fi Only】Supports 2.4GHz Wi-Fi only; 5GHz Wi-Fi is not supported. Once connected, you can receive updates through the app even when you are at work, traveling, or away from home. App push notifications are free. Phone call and text message alerts require a paid subscription. For reliable remote notifications, keep the door chime connected to a stable Wi-Fi network.
• 【2 Alert Methods & 2 Alert Modes】This WiFi door chime gives you 2 alert methods: real-time app notifications and a loud indoor receiver chime, so you can stay informed whether you are at home or away.It also offers 2 alert modes—instant alert gives you real-time notification when a door opens, while delay alert offers more flexibility during frequent entry and exit.
• 【Device Sharing】Share app notifications with family members or caregivers, so more than one person can monitor door activity at the same time. When you are away, at work, or unable to check alerts right away, others can step in to help. Caring for a loved one alone is not easy, but shared alerts help family members stay involved—bringing more support, less stress, and greater peace of mind.
• 【Easy to Install】Use 3M double-sided adhesive tape to mount the sensor on a door or window—no tools, wiring, or drilling required, making it ideal for renters. Suitable for homes, apartments, rental properties, stores, offices, and more. Please note: Not recommended for use on metal doors.
• 【Battery & Volume】Powered by 1 AAA battery, this door sensor lasts up to 2 years based on 40 openings and closings per day, reducing the hassle of frequent battery changes. Choose from 20 chimes and 5 volume levels from 0 to 110dB, so you can set the right sound and hear alerts clearly throughout your home, store, or workspace.
• 【After-Sales Service】Video tutorials are available in the user manual and on the product page to help you get started. If you have any questions or run into any issues while using the product, please contact us through the order channel, and we will assist you as soon as possible.

Overview

• Color : Black 1-1
• Brand : SanJie
• Power Source : Battery Powered
• Compatible Devices : Smartphone
• Battery Description : AAA Battery