This signal generator is professional product to generate sine/triangle/square wave. Features: High resolution, can generate sine/triangle/square waveforms. Frequency range: 1Hz-1MHz. Adjustable frequency and amplitude. Frequency adjustment Features coarse tuning and fine tuning. Wide power supply range, use 9-12V external power or 9V battery(NOT Included). Specifications: Type: DIY Kit / Semi-finished Product (Optional) Voltage Supply: 9-12V DC Input Waveforms: Square, Sine & Triangle Impedance: 600 Ohm + 10% Frequency: 1Hz-1MHz SINE WAVE Amplitude: 0-3V at 9V DC Input Distortion: Less than 1% (at 1KHz) Flatness: +0.05dB 1Hz - 100kHz SQUARE WAVE Amplitude: 8V (no load) at 9V DC Input Rise Time: Less than 50ns (at 1KHz) Fall Time: Less than 30ns (at 1KHz) Symmetry: Less than 5% (at 1KHz) TRIANGLE WAVE Amplitude: 0-3V at 9V DC Input Linearity: Less than 1% (up to 100KHz) 10mA Package Size: Approx. 12 * 8 * 2cm / 4.72 * 3.15 * 0.8in Package Weight: 69g / 2.46oz Package List: 1 * Signal Generator 1 * User Manual (English) Note: Semi-finished Product: circuit board has welded, while the transparent shell need to assemble by yourself.