Turnigy 6S Mini Lipo Battery monitor. An excellent and very accurate voltage meter. This unit also comes with a power save switch so that you can fix it to your heli or plane to monitor voltages on the fly with minimum current drain!    Functions and Features:   Measure and display the volatge of each cell and total volatage of the 2S-6S Lithium battery packs. Flashing light to indicate low volatge.Large-sized LED segment display with clear and legible characters. High contrast gradient segment suitable for outdoor environment.Compact in form and light in weight, Suitable for use both on hand and fixed on model. Power-saving mode specially designed for real-time monitoring of voltage when installed on the model.   Insert the contact pin of the volatge monitor into the balance charge socket of the lithium battery pack. Becareful that the cathode pin must be inserted right into the cathode of the balance charge socket. Isertion in wrong direction or misallignment should be avoided.   Battery Applicable: 2S ~ 6S Lithium battery    Measuring Voltage : 2.7V ~ 4.5V/cell Measuring Accuracy :0.01V Current : dispaly on : 50ma max Dimensions : 48x18x8mm Weight : 6g