Voltcraft lsg 10 test leads measurement device voltcraft lsg 10 p the voltcraft lsg 10 is a search and analysis device for electric conductors underground cable fuses circuit breakers steel wires and conductive tubes it detects both power interruptions and short circuits in existing installations the lsg 10 uses a single pole search function for the optimum search of conductors and objects at a depth of up to 2m whereas the two pole search function is used for target detection of fuse