The circuit op amp works in dual power state (dual power supply amplification does not require a DC blocking capacitor to ensure high and low frequency signals are not distorted).It can output triangular wave, rectangular wave and sine wave, and forward and reverse sawtooth wave.SYNC output with sync signal.Switching the waveform output by push button, easy operation.Adopts with clear shell, the signal generator is very beautiful and practical.The product is a DIY kit, not a finished productTemperature drift: 200ppm or Celsius.DIY Supplies: ElectricalModel Number: Signal GeneratorSingle power supply operation (built-in dedicated power management IC): single power supply operating voltage 9-15V.Frequency Adjustment Range: 1Hz-20MHzDuty Cycle Adjustment Range: 15 percent -85 percent Low Loss True Sine Wave: 0.75 percent triple-cornered Wave Output Linearity: 0.1 percent Low Impedance Output Buffer: 0.1ohmDC Offset Adjustable: -5V-5VAdjustable Output Amplitude: 0.1V-9.5VPP (operating voltage 9V)Item Weight: 82g or 2.90ozcolour:WhiteMaterial:PCBsize:99 x 59mmPackage Contents:1 x Signal Generator1 x Manual (English)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 a little different from the real thing. The measurement allowed error is 1-3cm.