Voltcraft multi tester voltcraft cf 02s cf 03s p the voltcraft multi tester is a blade type testing set for fuses consisting of two battery operated current measuring adaptors for direct current measuring in car fuse boxes the two measuring adaptors are designed in the shape of a blade type fuse and have different measuring ranges this way it is possible to measure slight leak currents and heavy current consumers without great effort directly in the vehicle fuse holder the results are d