AT528 handheld AC milliohm meters measurement requirements from contact resistance to internal resistance and voltage of batteries .It is the use of a high-performance processors and 3.5" TFT LCD screen smart handheld Meter. Accurate and convenient measurements of passive-components can be achieved in all occasions for a long time. Wide Resistance Measurement Range from 100μΩ to 3.2kΩ . 3200 resistance readers and 5000 voltage readers. It can guarantee 0.05% accuracy, even in the condition of the testing speed under 15/s. AT518 is equipped with Mini-USB interface, can conveniently make data communication and remote control with PC.