... Segment TGC ABD Trackball adjustment 10 inch VGA monitor Full digital Portable Laptop Ultrasound Scanner WK/21355Main Features: Powerful measurement ... ;USB/VGA/ ports;Video connector;Measurement: General menu: Distance, Area, Volume, Angle, Ellipse;Obstetrics menu: GS, CRL, BPD, HC, AC, ... FL, Fetus Weight;Heart menu: Distance, Time, Slope, Rhythm;Standard configuration: 10 inches ...