... ,good quality and favourable priceTechnical Parameters: 1. Five display format: B,B+B,4B,B+M,M; Image grey scale: 256 levels2. Freezing, real ... diagnosis7. Frequency Conversion: 2.5MHz ,3.5MHz ,4.5MHz ,5.0MHz, 5.5MHz, 6.5MHz, 7.5MHz, 8.5MHz 10.0MHz8. Image ... magnification: ×1.0,×1.2,×1.5,×2.0.9. Measuring: distance, perimeter, area, volume, pregnant weeks ...