... Test functionsTest parametersZ, C, L, X, B, R, G, D, Q, θBasic precision0.1%Equivalent circuit Mathematical functionSerial, parallel Absolute ... -999.99mFL0.00001μH-9.99999kHG,B0.00001μs-999.999sD0.00001-9.99999Q0.00001-99999.9θ(DEG)-179.999°-179. ... -3.14159%-999.999%-999.999%Comparator and interfaceComparator10 selectors, 9 qualified, 1 unqualified. The other one is supplementary.InterfacesRS232C, ...