1,Digital display, display current and voltage at the same time, clear and easy to read. 2,A variety of range specifications can be selected to meet the needs of various working scenarios. 3,High accuracy, sensitive response, fast recognition, with stable and excellent performance. 4,Have humanized design, simple to operate, easy to install, convenient to use and operate. 5,Small in size and light in weight, convenient to carry and use at any time, very convenient and practical. Item Type: Digital Voltmeter Ammeter Material: PCB Measuring Range: 0V-100V Test Range: 0-10A 0-50A 0-100A Power Supply Range: DC4-30V Voltage Error: ±0.1 percent Current Error: ±1 percent External Separator Specifications: 75 milliohms Working Current: <20mA Refresh Speed: About 300ms once Display Mode: Double three-digit 0.28 in LED digital tube Display Color: Red and blue Purpose: Used to display voltage and current readings Applicable Scenarios: Electronic equipment, circuit guard, wiring, maintenance, etc. 1 x Digital Voltmeter Ammeter 2 x Guide Line Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement.