This device offers wide-ranging voltage (3.0V to 600V) and current (0.5mA to 20.0A) measurements, supporting frequencies from DC to 400Hz. Its accuracy, ± (0.4% reading + 0.1 range + 1 digit), ensures precise results. Supporting AC, DC, and AC+DC modes, it's versatile for various measurement needs. With RS-232/RS-485 connectivity and a compact size, it's convenient for data transfer and user-friendly operation.