This product is for the real time display of the RC model battery voltage、 lowest voltage record、 the set up of the low voltage alarm while flying and test the rotational speed of propeller.Features:High precision display of individual cell voltage (1-6S shows separately) and the total voltage.With the special LCD screen which can indicate data clearly.With the reverse polarity protection for cell input.It can set up the range of LiPo / LiFe alarm voltage.Specification:Weight: 17gDimension: 69 * 33 * 11mmDisplay: LCDVoltage display resolution: 0.01VUsed for 2-6S of LiPo / LiFe batteryPackage Information:Package size: 9 * 6.5 * 3cm / 3.6 * 2.6 * 1.2inPackage weight: 65g / 2.3ozBrand gift box packagePackage List:1 * G.T.POWER 4in1 RPM/Voltage Analyzer