Xiaomi door sensor alfawise

1.thanks for all the quick answeres.
2. The device is tis one https://m.gearbest.com/access-control/pp_009265973897.html?wid=1433363&currency=ILS&vip=4446209&gclid=Cj0KCQjwqs3rBRCdARIsADe1pfS6V9Hzs8bpA0X5SlBhsJDkgnHSv0Fz2nrCi0H1_Q0SrKpCkpQyq7EaAqZ6EALw_wcB
Got it. It was in a white box written in Chinese. Dont know ecactly what it is and if it usable.