Brand G.T.Power Quantity 1 Piece(s)/pack Color Black Material Rubber paint Compatible device RC helicopter Functions Measuring efficiency; Measures eight parameters key to electric power safety and performance; Use it to prevent peak current damaging battery; Motor control motors wiring and connectors. Verify sufficient operating voltage under load. Set cutoff voltage check battery capacity and health. Balance battery cells. Confirm proper battery charger operation. Detect receiver and actual operating current so as to make sure whether an UBEC is needed Other Feature 2.4" LCD; Operates from 4.8~60V; 0V with optional auxiliary battery; Measures: 0~130A resolution 0.01A; 0~60V resolution 0.01A; 0~6554W resolution 0.1W; 0~65Ah resolution 0.001Ah; 0~6554Wh resolution 0.1Wh; 16 x 2 backlit LCD display; Size: 8.5cm x 4.4cm x 2.5cm; Weight: 86.5g Packing List 1 x Power analyzer 1 x English user manual