Features:1.FG-100 DDS Function Generator is a low signal generator.2. It is small in size, complete in function, easy operation and portable. Its power supply can be either an AC/DC adapter or a lithium battery.3. Working with an oscilloscope, it can be used to solve problems of electronic circuitry, characterize the audio amplifier frequency response or measure the impulse response.4. Due to its excellent DSS accuracy and frequency stability, it can also be used to calibrate the sweep time factor of oscilloscopes. You can also use its square wave to calibrate the oscilloscope attenuator or adjust the oscilloscope probe5. Have a filter (can be opened and closed) to match the output of sine wave and pulse wave. Specifications:1. Frequency range: 1Hz-500kHz sine wave (the magnitude is flat to 200kHz, above 200kHz, the magnitude may decrease as the frequency increases), other waveforms 1Hz-20kHz with good phase noise and small distortion, if you don't care about phase noise and distortion, it can output full frequency.2. Minimum Frequency Step: 1Hz3. Output wave shape: sine wave, square wave, triangle wave, forward sawtooth wave, backward sawtooth wave.4. Sine Wave Distortion: 1% (lt frequency; 1kHz); 0.5% (frequencygt;=1kHz).5. Maximum output amplitude: +/-10V6. Output Impedance: 50 ohms7. DC offset: maximum +/-10V, can be turned off.8. Internal filter: for sine wave or pulse, you can turn on/off.9. Power supply: DC3.5-10V. A 5V AC/DC adapter or 3.7.10 lithium battery is recommended. All setting parameters can be saved.12. Dimensions: 140x80x27mm.13. Weight (including accessories): about 220g. Output Frequency Range:Sine Wave: 1Hz-500KHz (Effective Range)Square Wave: 1Hz - 20kHz (Effective Range)Triangle Wave: 1Hz - 20KHz (Effective Range)Ramp: 1Hz - 20kHz (Effective Range)Key Description:Mode: Waveform Switch ButtonCursor: Fixed Cursor KeyRUN/STOP: Start to Waveform Output+: Frequency Plus-: Frequency DecreaseOffset Adjusts Waveform OffsetWaveform Amplitude Modulation AmplifierPackage:1 x FG-100 Generator DDS1 x USB function signal power cableNote:Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement error is +/- 1-3cm.