Wireless WiFi Door and Window Sensor with Push Alerts No Separate Network Required

Keep your home secure without the need for a separate network hub. This wire-free door and window sensor uses standard 2.4GHz WiFi to send instant push notifications to your smartphone whenever a door or window is opened. You can also connect a SONOFF camera or an unused smartphone to see live footage at home, not just receive alerts. The sensor is easy to install with adhesive backing and runs on a single AAA battery, making it a practical choice for renters and homeowners alike.

Features and Construction

The sensor is built for reliable detection and simple setup. Its compact design uses a magnet trigger and a wireless transmitter that works with most standard doors and windows.

Material and Build

Made from PC (polycarbonate), the housing is lightweight and suitable for indoor use. The sensor operates in temperatures from -10°C to 40°C, making it practical for most rooms in the house.

Size and Practical Fit

The sensor requires an installation gap of less than 5mm between the sensor body and magnet. This means it suits most standard-frame doors and windows where the gap is small enough.

Uses and Placement

This sensor is designed for home security and automation. It works well on front doors, back doors, sliding windows, and casement windows where immediate alerts are needed.

Event or Professional Use

Use it in small offices, rental properties, or workshop entrances to monitor access without a full alarm system. The push notification keeps you informed when someone enters or leaves the property.

Everyday Home Use

Mount it on a child’s bedroom door, a pantry, or a garden gate to know exactly when it opens. Combined with a SONOFF switch, you can automate hallway lights to turn on when someone enters the front door.

Benefits and Buying Value

This sensor offers practical security and automation without monthly fees or complicated wiring. The app provides a low battery reminder to help minimise downtime.

Reuse and Low Maintenance

The sensor runs on a single AAA battery (not included) and consumes less than 40µA in standby mode. There is no wiring or ongoing subscription, so it is easy to move between locations.

Why Choose This Product

It works directly over 2.4GHz WiFi without requiring a separate hub, which simplifies setup. The 3-month history log in the app lets you review past notifications whenever needed.