The CA 6528 megohmmeter measures resistance, insulation and continuity according to the applicable international standards: IEC 60364, NF C 15-100, VDE 100, etc. The continuity measurement integrates compensation of the cables. Insulation measurement is possible in manual mode, locked mode or programmed-duration mode with the timer. When measuring the voltage, an indicator shows the battery status.

The CA 6528 indicates the test results instantaneously: the screen turns red if the threshold is overrun.

The presence of a hazardous voltage (>30 V) is detected automatically by the CA 6528, which then prohibits insulation testing.