High precision, high reliability, suitable for high-end applications  With reverse protection, then anti-burn  10A voltage current meter itself built-in shunt, 50A / 100A voltage current meter head distribution shunt (pay attention to the power supply must be connected before the splitter)  Voltage measurement range: DC0-100V  Current measurement range: 0-10A, 0-50A, 0-100A  Operating current: less than 20mA  Refresh speed: about 300mS once  Display: double three 0.28inch LED digital tube  Display color: red + red  Lead length: 15cm  Dimensions: 48 * 29 * 22mm  Mounting hole: 46 x 27  Net weight: 28g  Operating temperature: -10 degrees Celsius ~65 degrees Celsius  Material:metal   Colour:black  Package Contents:  1 x Voltage ammeter  1 x 3PIN cable  1 x 2PIN cable  Note: Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.