Reminds you when the door/window opens. Stay connected with SONOFF smart products for an easier smart life.
The sensor will send you a push notification immediately if someone is detected opening your door or window.
Highly efficient battery
It adopts low power consumption technology that ensures the sensor operates normally for 2 years with a door opening/closing frequency of three times a day.
Safety in every corner of the house
Return to History
Automatic storage of message notifications.
You can check the history files for the last 3 months.
Smart solutions in practice
Do you want the hallway to light up when you enter the door?
Just connect the SONOFF switch or light to the sensor and go.
*The status and performance need to be set on different devices.
Quick Installation
Installation in seconds.
Tool-free installation.
Features 3M adhesive on the bottom of the sensor for easier installation.
*Ensure that the installation gap is less than 5 mm when the door or window is closed.
At a glance...
The sensor sends notifications to the app on the phone
Specifications are collected from official manufacturer websites. Please verify the specifications before proceeding with your final purchase. If you notice any problem you can
report it here.
The extender is to blame, it's just a battery eater. It works well sometimes, but it doesn't always send a disconnection notification. I don't know if it's because it's playing through the extender, but it shouldn't. It sends a notification when the door is closed and when it's opened though
Attention, it only sends a signal when opening and not when closing, so for example, you only know if someone opened the door and not if they closed it.
I bought 5 contacts. 2 of them worked fine. The other 3, for some reason, drained the batteries in seconds and you could tell because the batteries were overheating. At first, I thought it was the batteries, but I bought new ones, tested them, put them on, and the 3 contacts still didn't work. They just drained the batteries. Possibly faulty pieces?
I want to emphasize that the RF version only has one state, it simply sends a signal that the contact has opened to an RF bridge, unlike the wifi version which is standalone and has an open/close state where you can work with it better in scenarios.
It does what it says. It is a Single State Sensor, which means it simply sends a signal when the door opens only. Together with Sonoff's RF Bridge, I have installed them in HomeAssistant and all automations work perfectly.