Can produce sine wave, triangular wave, square wave Frequency can be from 1HZ-1MHZ Frequency, amplitude adjustable; five-bit precision resolution; Frequency adjustment has coarse adjustment and fine adjustment; Wide range of power supply, can use external power 9-12V or 9V battery; All in-line components, small number of components, simple installation and debugging. Parameters: Technical specifications: Power supply voltage: 9-12V DC input Waveform: square, sine and triangle Impedance: 600 ohms + 10% Frequency: 1hz-1mhz Sinusoidal wave Amplitude: 0-3V at 9V DC input Distortion: less than 1% (1kHz) Flatness: + 0.05db 1hz expansion Square wave Amplitude: 8v (no load) at 9V DC input Rise time: less than 50ns (1kHz) Drop time: less than 30ns (1kHz) Symmetry: less than 5% (1kHz) Triangular wave Amplitude: 0-3V at 9V DC input Linearity: less than 1% (up to 100kHz) 10ma Colour: Material:Electronic components Package Contents: 1 * XR2206 High precision signal generator DIY Kit Only the above package content, other products are not included. Note: Light reflection 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.