... Method: Convex, linear multi-frequency with wide bandDisplay Mode: B, B+B,B+M,MGray Scale: 256 levelsMonitor Size: 10.4" TFT ... adjustable in real-time of B and B+B modeImage Conversion is U/D,L/R and B/W.8 different coded- ... is in Distance ,Circumference/Area, Heart RateEF rate for heart, and GS, CRL, BPD, HC, FL, ... AC for OB/GY measurement, and Gestational Age, Fetal weight, ...