• It can indicate 2-3s LiPo battery's voltage situation by the LED and alarm

• With this equipment, you can prevent the battery from over-discharging

Specifications:

• Dimension: 32 x 18 x 9mm(L x W x H)

• Net weight: 5g

Instruction:

• When a battery's voltage is higher than 4.3V, the corresponding LED will flash red light slowly and beep. When a battery's voltage is between 3.0 to 4.3V, the corresponding LED will be green constantly, but no beep. When a battery's voltage is lower than 3.0V, the corresponding LED will flash red light quickly and beep