... :0.01Hz--100KHz(max 100KHz) Accuracy:0.01Hz. Digital 4/5/6 LED Frequency Meter (FA) Features:1, Input: various wave form ... line-speed,level,etc;The instrument has several parameters setting function,easy to operate.2, For other specialize teser for ... indicate when ordering.3, 4/5/6 digit display,with demical point switched automatically;Opical isolation for input and output,high anti-interference.4 ...