Battery Voltage Tester/ Low Voltage Buzzer Alarm/ Battery Voltage Checker with Dual Speakers
Use for 1-8s Lipl/Li-ion/LiMn/Li-Fe/NiMh
It can clearly show the voltage and the state of battery used, just plug your batteries into connectors with black wire going first (all the way to the left) while looking at the screen.

Colours supplied will be either in black or white!

Voltage detection pricision: 0.01V
Quantity: 1 pcs