ITEM NAME:FG-100 DDS Function Signal Generator Module Good Accuracy Frequency Counter Ew Feature: 1. Small size, complete functions, simple operation and easy to carry 2. Can be.Item Type: Function Signal Generator. 1 x Signal Generator. There are filters that can be turned on and off, which can well adapt to sine and pulse waveform output. Frequency Range: Sine wave 1Hz-500kHz, Other waveforms 1Hz-20kHz.