User's Manual
Battery Installation
When   the   device   report   the  low   battery   message.   The   user   should
replace the battery to new one.
The way to open the front cover please follow below steps. 
1. Using a tool like (1) to press 1-1 till hear a click sound
2. Hold the front cover and pull back
3. Hold the front cover and pull up
Replace the new battery and install the cover back.
1. Put the front cover bottom to 1-1, and press down.
2. Push the front cover top to 2-1.
Choosing a Suitable Location
1. The recommended mounting height is 160cm
2. Don't let the device facing the window or the sunlight.
3. Don't let the device facing the source of heat. Like heater.
6










