7mhz(matching 6.5mhz cavity probe and 7 mhz high-frequency linear array probe). .Calculation: distance, perimeter, area, heart rate, pregnancy week (bpd, gs, crl, fl, ac) and anticipated delivery date. .Note: name, serial numbers of case history, gender, age, 16 body marks (with probe), full-screen character, real-time clock .Puncture guide: the puncture guide line can be displayed under b mode. .Gain control: the total gain, near field and far field can be adjusted successively. .Image polarity: left/right, black/white and up/down reverse. .Fractionated gain: 2 time of enlargements .Movie memory: 256 pictures can be memorized successively when the real-time is displayed. .Image memory: 128 pictures permanent storage. .Image review: images can be reviewed successively and checked one by one. .Output interface: 2 groups of svga video output may mate with svga color monitor.And 2 groups of pal video output may mate with pal monitor, video image recording instrument and image workshop, etc. 1 group of usb connection
