How to be notified of new messages, which brings the postman

The company Xiaomi large range of devices to create a smart home. Among them there are temperature sensors, leak, motion, switches and more. They all have a certain usage scenarios: to monitor the opening of doors, to receive notification of a fire or damage to the plumbing or remotely turn on the lights in the room with your smartphone.

But there are unusual examples of smart home devices. For example, a motion sensor can be placed in the mailbox at the entrance. Then on the smartphone will receive a notification about a new letter or booklet.

Motion Sensor Xiaomi Aqara powered by batteries and is attached to any surface on the double sided tape. According to the manufacturer, the battery provides up to two years of battery life.

But there is an important condition: the sensor must be in the area of ​​home Wi-Fi. So this scenario is suitable only for private homes or residents of the lower floors, because usually the mailboxes are located on the first or second floor.

Himself a very small sensor. Even if you break the lock and open the box, the device may simply not notice.