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 you to solder and install. 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 dual power supply, will not block capacitors, and ensures high and low frequency signal integrity. Adjustable frequency and amplitude. The frequency adjustment has coarse and fine adjustment functions. All are through-hole components, 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: approximately 7.8 x 5cm / 3.07 x 1.97 inches. Finished product size: approximately 8.7 x 6 x 1.7cm / 3.43 x 2.36 x 0.67 inches. 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 shooting 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.