Function setting:
1: Press and hold the key for 2 seconds to enter the setting state: the mode light (battery 1 type) flashes, and the string number light is always on; Briefly press the key to select the battery type.
2:After confirming the battery type, press and hold the key for 2 seconds to enter the string number 2/voltage setting (the mode light is always on, and the string number/voltage light flashes)
3. Press the button to set the battery string number or voltage; Please refer to the above table option settings for details.
4:After setting, press and hold the key for 2 seconds to save the data and return to the display of 4 power status (or wait for 5 seconds to automatically return)
5 In the setting state, if there is no operation button within 5 seconds, the power will automatically return to the normal display.
Type：Battery Level Indicator
Color：as show
Size：as show
Material：plastic
Working current:<10mA
Working voltage: DC5V-30V
Refresh speed: 500ms/time
Package include：1pc Battery Level Indicator
Note:
1.Please be reminded that due lighting effects, monitor's brightness/contrast settings etc, there could be some slight differences in the colour tone of the website's photo and the actual item.
2. Item Measure by hand, it could be 1cm different,your kind understanding will be much appreciated.