2in1 1-8s Lipo Battery Voltage Tester,RC Low Voltage Buzzer Alarm,Battery Monitor Checker Tester for 1-8s Lipo/Li-ion/LiMn/Li-Fe
Voltage Display Function and Low Voltage Alarm Funtion(Note:When the voltage is lower than the alarm value, it will always ring.And when the product of the measured is unpluged, the alarm will stop.)