... measurements: BPD, GS, CRL, FL, AC, HC, etcPermanent function of image store: 32 imagesBack-lit keyboard 2 probe connectorsProbe automatic ... froze;Image conversion: up/down, left/right, black/white;Function of puncture guide;Max dynamic range>=100db;Detecting depth>=190mm, ... , OB/GYN, urology, cardiology, small parts etc;USB Function of image store: more than Sixteen thousand images;Power supply: AC ...