Features: This meter features user friendly design and reliable functionality, ensuring precise readings for both positive and negative current. Positive and negative bidirectional current measurement. Integrated voltage and current, antireverse connect protections, antireverse connection without burning. This power energy meter can measure and display voltage and current at the same time. Small size, simple application, made from highs quality materials, wear resistant and practical. Specifications: Material:ABS Current range: 50A/100/200A/400A Current resolution: 0.1Amp/0.1Amp/0.2A/0.2A Powersupply voltage range: DC5-100V Voltage measurement input range: DC300V Voltage resolution: 0.1V Size:Approx.48mm/1.89''x29mm/1.14''x26mm/1.02'' Note: Please allow 1mm errors due to manual measurement. Due to the differences between different monitors, the picture may not reflect the actual color. Package includes: 1x Ammeter Voltmeter 1x Diverter 1x Connect Cable 1x Power Cord