Prolux DC 3.7-20V LCD Voltmeter (Nimh 300ma Load Tester) PX2720, Model Shop Leeds

Volts Monitor is great for monitoring battery power before flying.

Features

12 bits microchip IC design, reading voltage accurately.
Large LCD display shows battery voltage and 7-step capacity icon.
Capable of measuring 1-2-3-4 cell (3.7V-7.4V-11.1V-14.8V) Li-Po or 4.8V-6.0V-9.6V Ni-Cd/Ni-MH battery packs.
The test result shows under condition of 300mA current loading.
Test range is between 3.7V-20V.
Reverse voltage protection.