TS-FG100 1Hz-500KHz DDS Function Signal Generator Module Frequency Counter Main Features: ● Small size, multiple functions, simple operation, easy to carry. ● Can test many kinds of wave forms such as: Sine, square, triangle, positive and negative sawtooth waveform. ● Can be used with oscilloscope to test and debug electronic circuit, the frequency response of audio amplifier and impulse response. ● The square waveform is suitable for oscilloscope attenuator and the adjustment of probe impulse response. ● Can calibrate the sweep time factor of oscilloscope. ● Have a filter (can be opened and closed) to suit the output of sine wave and pulse wave. ● It is especially designed for those professional workers.