Portable Convex Ultrasound Scanner  Technical Parameters  Display mode: B, B/B B/M and M  Probe Frequency: 2.5 MHz -7.5MHz  Scan Mode: 3.5 MHz 128 Element Convex, Electronic Linear  Measurement: Distance, Circumference, Area, Heart rate, EF slope, GS, BPD, CRL, HC, AC, FL for Fetal Week and weight.  Dual direction 256 frame cine loop.  Standard Configuration: Main unit, 3.5 MHz convex Probe  Option: Multi-frequency Convex Probe, Linear Probe and Transvaginal Probe.