... in real-time and frozenMeasurement :distance, circumference, area, volume, EF rate, heart rateOB measurments :EDD, GA, FW ( BPD, GS, CRL, FL, HC ... , cardiology, small parts examination, etc.Power supply :AC 100V~240V, 50/60HzStandard configuration: 6.5MHz rectal linear probeOptional configuration:L40/7 ...