Cool Shit. She goes to the WiFi router is not clear how. I didn't understand that algorithm through the phone. There, the Reed and when the contact is blurred, it awakens out a weak squeak barely hearing the throttle blinks with the LED connects to the WiFi and the phone is sent. As an alarm from a stupid wife, perfect thieves have been walking with silencer for a long time.

Ordered a sensor with a battery, charged, behind this device manyuseniya black button, it should be class in the bottom, put two parts of this smart phone, Bluetooth on the phone, asked for your WiFi password, entered, and it did everything itself, it works fine! Recommend. Ukraine Mariupol

Good shopping. I 've mounted two units and they work perfectly. They have quite a few functions and a very useful one is that it remotely informs you of the battery charging status. A recommended purchase. Note that they only work with 2.4 ghz wifi

The item is as described as it takes 8 days to arrive in Spain the sensor works very well and is narrow so that you can put it on the door already and bought several Highly recommended seller

I tried it and it works with Alexa. I'm trying to connect it to the alarm (both are on the same wifi network and both are detected with Smart Life) but the alarm isn't able to find it.