"Features:
Operating voltage: DC7-9V
DDS frequency range: 1HZ-65534Hz.
Display: 1602 LCD
High-speed frequency (HS) output up to 8MHz;
DDS signal amplitude of the offset amount can be adjusted separately by two potentiometers;
DDS signals: sine wave, square wave, sawtooth, reverse sawtooth, triangle wave, the ECG wave and noise wave.
Section into the value: 1,10,100,1000,10000 Hz;
The power automatically restore the last used configuration.
Offset: 0.5pp-5Vpp
Amplitude amount: 0.5Vpp-14Vpp

Key Functions:

The UP output waveform select
The DOWN output waveform select
LEFT output frequency -
RIGHT output frequency +
STOP / RUN the output stop / start

""UP"" key waveforms order:
ECG = electrocardiogram wave (in the OFF state, the ""left ""and ""right"" keys to set the output frequency. Middle button start, all of the following waveform set)
Rev Sawtooth = reverse sawtooth
SawTooth = sawtooth
Triangle = triangle wave
Square = square wave

Package Included :

1 x DDS Function Signal Generator Module Sine Square Sawtooth Triangle Wave"