Voltcraft ms 4p test probes voltcraft ms 4p p a set of voltcraft ms 4p silicon safety test leads ideal for use with all multimeters the protective caps on the measuring tips can be removed for measurements in category ii up to 1000v p p the fully exposed 4mm plug probes enable reliable contact in power outlets and laboratory test sockets the two coloured double insulation means any damage to the test leads can be detected immediately p voltcraft ms 4p test probes