Model	Test Freq. Range Low	Test Freq. Range High	Resistance Range Low	Resistance Range High	Capacitance Range Low	Capacitance Range High	Measurements
4270	50 Hz	1 MHz	100 uOhm	200 Mohm	0.1 pF	31.8 F	Z, Rac, L, C, Q, D, Phase, Vx, Ix, D%, Series & Parallel.Rdc
4265	50 Hz	100 kHz	100 uOhm	200 Mohm	0.1 pF	31.8 F	Z, Rac, L, C, Q, D, Phase, Vx, Ix, Series & Parallel, Rdc
4260	1 kHz	1 kHz	1 mOhm	200 Mohm	0.1 pF	100 mF	Z, Rac, L, C, Q, D, Phase, Series & Parallel
4230	100 Hz	200 kHz	1 mOhm	100 Mohm	0.01 pF	1 F	Z, R, C, L, D, Q, Phase, X, G, B, DCR
3255B	20 Hz	500 kHz	1 mOhm	2 Mohm	0.01 pF	250 mF	L, Z, Rdc, C, Q, D, Rac, Phase