Features: Signal generator, can produce certain periodic time function waveform, sine wave, square wave, three angle wave, sawtooth wave and pulse wave signal. The frequency range from several micro hz to tens of megahertz function signal generator in circuit experiment and test equipment has the very wide range of uses. High speed frequency (HS) square wave: 1MHZ/2MHZ/4MHZ/8MHZ signal. The offset amplitude of DDS signal can be adjusted by two potentiometers. DDS signal: sinusoidal wave, square wave, sawtooth wave, reverse sawtooth wave, three angular wave, ecg wave and noise wave. Specifications: The frequency range of DDS is: 1hz-65534hz.(almost no distortion, the amplification part is TL082). 1602 LCD screen. Intuitive 5 keyboard. Step frequency: 1, 10100100010000Hz. Automatically recover the last time after power supply. Offset: 0.5pp-5Vpp. Amplitude: 0.5Vpp-14Vpp. Output impedance: ohms 20-200. Color: black. Package included: 1 * Low frequency signal generator.