Press the battery compartment latch while taking out the shell
Load the batteries
After powering on, the screen displays ” 
” and flashes
When “” stops flashing, install the device to the valve interface.
If the screen displays ” 
” or ” 
“, press the middle button and “ ” will display again.
Short press the middle button, and ” ” will flash (Figure ①). Wait for about 5 seconds, and the device will display the initialization interface (Figure ②), which means that debugging is completed.
In manual mode, turn the knob counterclockwise. When the screen displays “
“
Press and hold the middle button for 3 seconds
Check the Network Indicator 
Status (Flashing)