Features Specification This generator DIY kit is professional product to generate sine/triangle/square/forward and reverse sawtooth . It's a DIY kit for you to weld and install. Features: Uses ICL8038 and high-speed op amp, higher accuracy. Can output sine/triangle/square/forward and reverse sawtooth waveforms. Frequency Range: 5Hz~400kHz; Duty Cycle Range: 2~95%(Adjustable) Supports dual power amplifier without blocking the capacitor to ensure high and low frequency signal distortion. Adjustable frequency and amplitude. Frequency adjustment features coarse tuning and fine tuning. All are through hole components, easy to install. Specifications: Material: FR4 + Acrylic Supply Voltage: 12V~15V Frequency Range: 5Hz~400KHz(Adjustable) Duty Cycle Range: 2~95%(Adjustable) Low Distortion Sine : 1% Low Temperature Drift: 50ppm / °C Output Triangular Linearity: 0.1% DC Bias Range: -7.5V~7.5V Output Amplitude Range: 0.1V~11VPP(operating voltage 12V) Board Size: Approx. 7.8 * 5cm / 3.07 * 1.97in Finished Product Size: Approx. 8.7 * 6 * 1.7cm / 3.43 * 2.36 * 0.67in Product Weight: 81g / 2.86oz Package Size: Approx. 11 * 7 * 3cm / 4.33 * 2.76 * 1.18in Package Weight: 95g / 3.35oz Note: The testing picture is just for reference, please in kind prevail! Package List: 1 * Generator DIY Kit 1 * User Manual(English) Package List 1 * Generator DIY Kit 1 * User Manual(English)