10Hz to 100MHz. Sensitivity: 25mV rms to 100Mz, 75mVp-p at 5ns channel A. 25mV rms to 2.5MHz; 75mVp-p at 100ns. Functions: frequency, period, time interval, ratio, and totalize HP5314A频率计,销售热线:010-67131181/64021565,欢迎有意者来电垂询,我们真诚期待您的光临!