1、Can generate sine waves, triangular waves, square waves. 2、Frequency can be adjusted from 1hz-1Mhz and amplitude are adjustable. 3、Five-digit resolution.The frequency adjustment has a coarse adjustment and fine adjustment. 4、Wide power supply range, can use external power supply 9-12V or 9V battery. 5、All in-line components, small component count, easy installation and commissioning. Features: Can generate sine waves, triangular waves, square waves. Frequency can be adjusted from 1hz-1Mhz and amplitude are adjustable. Five-digit resolution.The frequency adjustment has a coarse adjustment and fine adjustment. Wide power supply range, can use external power supply 9-12V or 9V battery. All in-line components, small component count, easy installation and commissioning. Specification: Voltage Input:9~12VDC Wave Type:Square, sine and triangular signal Resistance: 600Ohm+10% Frequency: 1hz~1Mhz Sine Wave: Amplitude: 0-3V at 9V DC Input Distortion: Less than 1% (1KHz) Flatness: + 0.05dB 1Hz - 100kHz Square Wave: Amplitude: 8V at 9V DC Input (No Load) Rise Time: Less than 50ns (1KHz) Fall 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  Type: Unwelded Parts with Shell/Welded Parts with Shell(Optional) Package List: 1 x XR2206 Welded Signal Generator 3 x Knob 6 x Shell 4 x Long Screw 4 x Short Screw 4 x Nut 2 x Slide Block 1 x Users Manual Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement.