1.Operation system: Windowsxp/7/8/10 2.Ultrasound frequency: Pulse wave ( PW ) 2MHz Continuous wave( CW ) 4MHz 3.Measuring range: PW not less thant20. 200cm/s CW not less thant10-100cm/s 4.PW Depth: 25- 160mm 5.Transmit power: 0-100% Adjustable( Can be extended to 0-800% ) 6.lmage gain: 0-7level(48db) 7.Image storage: More than 10000Spectrum 8. Spectrum conversion: 256/512/1024dotFFT Built-in conversion