Quick view Add to Cart RC Pro Lipo Battery Voltage Tester / Low Voltage Buzzer 1-8S RCP-BM001 $8.67 inc GST RC Pro Lipo Battery Voltage Tester / Low Voltage Buzzer 1-8S This is battery voltage checker and low voltage buzzer 2-in-1 unit. Checking the voltage of each battery. When the voltage is below the set value, it will buzzer with red LED light,... Compare