Features:
This product supports 15 waveform outputs including sine wave, square wave, triangle wave, forward sawtooth wave, reverse sawtooth wave, half wave, full wave, wave, noise waveform, .
Complete functions and easy operation. It can be used with an oscilloscope to test and debug electronic circuits, test and measure the frequency characteristics and pulse response of audio amplifiers.
Easy to use, with a save function to save all setting parameters. Small appearance, very convenient to carry.
Wide range of applications, DDS has good accuracy and frequency stability, and is also very suitable for calibration of oscilloscope scanning time coefficients.

Specifications:
Part name: Signal generator
Material: ABS+metal
Color: as shown in the figure
Size: approx. 125*80*26.5MM
Output waveform: sine wave, square wave, triangle wave, forward sawtooth wave, reverse sawtooth wave, ECG wave, exponential rise, exponential fall, Lorentz pulse, Gaussian pulse, sine pulse, half wave, full wave, wave, noise waveform, . 15 waveforms.
Power supply: DC4-9V (DC5V is recommended when using an adapter, and 3.7V lithium battery is recommended when using battery power); power DC interface 3.5mm
Current: 180MA at 5V.
Frequency range: sine wave 0.01Hz-500kHz (with the further increase of frequency, the output amplitude will decrease), other waveforms 0.01Hz-100.00kHz (but the upper limit of the adjustable frequency is not limited, if the distortion and jitter requirements are not high, the use frequency can be further increased)
Resolution: 0.01Hz
Sine wave distortion: <1% below 1kHz, <0.5% above 1kHz
Output amplitude: maximum ±10V (P-P)
Output impedance: 50Ω
DC bias: maximum 10V, with shutdown function
All setting parameters can be saved.
There are  that can be turned on and off, which can well adapt to the output of sine waves and pulse waveforms.
Key Description;
When the generator is in operation and the cursor is not flashing (press RUN/STOP), other keys are invalid; when you need to adjust parameters, please press the RUN/STOP key first, wait for the cursor to flash, and then use other keys to set.
MODE: Mode key, used to switch output waveform.
CURSOR: used to move the cursor (use +- keys to adjust the frequency).
RUN/STOP: Run or stop waveform output.
When the cursor is not flashing, the waveform is output and other keys are invalid.
+: Frequency +
-: Frequency -
DC OFF SET: DC bias switch
Press ON: Adjust the yellow knob to adjust the DC component of the signal.
OFF: The DC component of the signal is 0.
FILTER: Filter switch, when the signal is close to a sine wave of 300K or more, press this key and the waveform will become clear.
But the signal amplitude will also become smaller.
AMP: Side button, used to adjust the signal amplitude (clockwise rotation increases the amplitude)

Usage steps:
1. Take out the matching USB to 3.5MM cable, insert it into the power input port (the power supply can be from the computer USB port or mobile phone charging head or power bank. It is recommended to choose a power supply that has passed 3C certification. Poor power supply will cause the signal generator to not work properly), connect the BNC clip line, the red clip line connects to the oscilloscope probe, and the black clip line connects to the oscilloscope GND clip.
2. Press the power switchand press MODE to select the waveform to be output；
SlN: sine wave
Square: square wave
Triangle: triangle wave
Sawtooth: forward sawtooth wave
Resawtooth: reverse sawtooth wave
ECG: electrocardiogram
EXP-rise: exponential rise
Lorenz: Lorenz pulse
Gaussian: Gaussian pulse
Sinc: sine pulse
Half-wave: half wave
Full-wave: full wave
Noise: noise wave
EXP-decay: exponential decline

Package includes:
1 x Tester
1 x USB power Cable
1 x BNC Clip Cable
1 x Dual BNC Cable
1 x Wave Module Board