... High Quality SF660 Portable Full Digital Ultrasonic Daignostic System for vet or human, Horse Head Brand ... Main Features:Windows XP operation system basedUltrasound Work-Station managing systemPowerful measurement & calculation ... supply AC 110V~240V, 50Hz/60HzImage storageBuilt-in Patient Information Management SystemMeasurementDistance, circumference, area, volume, gestational age ...