YUNIQUE GERMANY 2-Piece Buzzer 1S - 8S Lipo Alarm Warner Protection Checker Voltage Buzzer Beeper 1S 2S 3S

Keep your batteries in check, measure all LiPO from 1 to 8 cells. With double high-power buzzer for dead battery. Alarm audible even on long distances (drone in flight). Low battery threshold that can be selected by button. The handy mini tester measures the voltage of each cell in your battery, tabs on each battery is crucial for proper use of drones! Quickly test for your lipo before your flight, and you can use it as an alarm during the flight if you are not sure the maximum flight time Very easy to use, just connect it to the battery plug to read the total voltage and voltage of each cell that is displayed cyclically in the display. With one button, you can activate and even set the low battery alarm threshold with a threshold value of 2.7V to 3.8V., Weight: 0.0440924524 Pounds, Manufacturer: YUNIQUE DEUTSCHLAND