lcd digital meter xc6013l capacitance capacitor tester mf uf circuit gauge capacitance meter tester luo ke capacitance range 200pf ±2% 2000pf 20nf 200nf 2uf 20uf 200uf 2000uf 20mf package includes: 1 x capacitor meter 1 x probes 1 x user manual 1 x battery