The signal generator DIY kit is a professional product that can generate sine wave, triangular wave, square wave, and positive and negative sawtooth wave. This is a DIY kit for soldering and installation. Using ICL8038 and high-speed operational amplifier, the accuracy is higher. Can output sine, triangular, square, and forward and reverse sawtooth waveforms. Frequency range: 5Hz to 400kHz; duty cycle range: 2% to 95% (adjustable). Supports bi-amping, no blocking capacitors, and low high-frequency signal distortion. Adjustable frequency and amplitude. Frequency adjustment includes coarse and fine tuning functions. All components are through-hole, easy to install. Power supply voltage: 12V to 15V. Low distortion true sine wave: 1%. Low temperature drift: 50ppm/C. Output triangular wave linearity: 0.1%. DC bias range: -7.5V to 7.5V. Output amplitude range: 0.1V to 11VPP (at 12V working voltage). Board size: 7.8 x 5cm / 3.07 x 1.97 inch. Finished product size: 8.7 x 6 x 1.7cm / 3.43 x 2.36 x 0.67 inch. Material: FR4 + Acrylic. Color: Black. Package Contents: 1 x Low frequency signal generator DIY kit. Only the above package content, other products are not included. Note: Light and different displays may cause the color of the item in the picture to be slightly different from the real thing. Measurement allowed error is +/- 1-3cm.