TECKNET Door Alarms for Kids Safety, Door Alarms When Opened, Two-Way Door and Window Alarm Door Alarm for Home Security, 2-in-1 Alarm & Chime, 3-Level Volume Control, Door Sensor Alarm (3 Pack)
TECKNET Door Alarms for Kids Safety, Door Alarms When Opened, Two-Way Door and Window Alarm Door Alarm for Home Security, 2-in-1 Alarm & Chime, 3-Level Volume Control, Door Sensor Alarm (3 Pack)
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30-Day Hassle-Free Returns
30-Day Hassle-Free Returns
Not satisfied? Return your order within 30 days for a full refund or exchange — simple and easy.
✔ Easy return process
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Fast U.S. Shipping
We ship within the United States only — no international delays.
✔ Processing time: 1–2 business days
✔ Delivery time: 3–7 business days
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About This
- 【Quick alarm】 When the distance between the alarm and the magnetic sensor exceeds 0.78 inches, the door and window alarm will sound an alarm. (Low-voltage alarm: when a short DIDI sound sounds after the alarm, it means that the battery is low and needs to be replaced in time.)
- 【Five Alarm Modes】By short pressing to adjust the alarm mode, there are five modes to switch according to the situation: 1. Alarm when opening the door, and stop when closing the door; 2. Ding-Ding doorbell alarm; 3. Alarm after opening the door lasts for 30S; DIDI alarm when opening the door, and stop when closing the door; 5. Alarm after opening the door for 15S, and last for 30S.
- 【3-Level Volume Control】This window alarm sensor has 3-level volume control, which is an ideal choice for apartments, mobile homes, offices, hotels, garages and other places. Press and hold the SET key to adjust the volume. There are three levels of volume adjustment to meet your alarm and reminder needs.(Built-in 3 × LR44 batteries)
- 【Convenient Bidirectional Installation】The door magnet has magnetic induction function on both sides, which can be installed in both directions. The installation steps are simple, just peel off the attached sticker to install the alarm sensor on the door or window, etc.(Note: please keep the installation area clean and ensure that the sensor is installed within 0.78 inch from the arrow side of the alarm. )
- 【36-Month Warranty】If you encounter any problems in using the product, please feel free to contact our professional customer service team, enjoying TECKNET 36-Month Warranty (Registered Only)
Overview
- Color : White
- Brand : TECKNET
- Power Source : LR44*3
- Battery Description : Alkaline
- Number of Batteries : 3 LR44 batteries required.

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SMART HOME FAQ
Yes — many modern devices support multiple platforms.
Matter-certified devices can work across Alexa, Google Home, and Apple HomeKit at the same time.
Not always.
Smart bulbs, plugs, cameras, and video doorbells are often easy DIY installations, while full security systems may need professional setup.
Many devices still work manually or through local control.
You may lose remote app access, but locks, lights, and thermostats often continue basic functions.
Security depends on the device and setup.
Use strong passwords, trusted brands, firmware updates, and secure Wi-Fi for better protection. Privacy and unauthorized access are common concerns in smart homes.
Most homeowners start with:
Smart Security Cameras
Smart Door Locks
Smart Thermostats
Smart Plugs
Video Doorbells
Yes.
Smart thermostats and smart plugs help reduce wasted energy by automating heating, cooling, and power usage.
It depends on your ecosystem.
Alexa → widest compatibility
Google Home → strong for Android users
Apple HomeKit → best privacy
Home Assistant → advanced control
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