With the model M73, the function-relevant tests of RCDs (RCDs) and the impedance measurement in electrical systems can be carried out according to VDE 0100 can be made.
With the M73, every safety-relevant test of residual current protective devices can be carried out. In addition, it is also possible to measure the loop impedance directly at the sockets of the systems under test without triggering the FI switch. M73 can also be used as a precise digital multimeter in TRMS, is characterized by an ergonomic design and has an innovative electronic function selector switch for a quick test sequence.