If you want to use current probes which are not part of the standard accessories of MAVOWATT 30 / 40 / 70 you have to pay attention because the current probe input of MAVOWATT has a measuring range of 1,5 V. Current probes with higher output voltage can only be used in this measuring range, that means a reduction of the possible final measuring value. The useful range starts at 10 % of the original measuring range. Additionally the output impedance of the current probe has to fit the input impedance of the MAVOWATT 30 / 40 / 70.