u Specification: ?Scanning mode :linear array/convex array/micro-covex array?Standard probe frequency:3.5MHZ?Resolution:lateral≤2:Axial≤1?Dead zone:≤4mm?Depth scope:0-240mm?Gray scale:256?Scanning line:512?Frame frequency:≥30 frames/sec?Digital scanning onverter:512X512X8bits?14?SVGA black and white display?video output:standard PLA_D?power supply:220V±22V, frequency:50Hz± 1HZ?power consumption:≤150VAuStandard composition:?Main unit:1 set? 3.5MHZ 80 array convex probe?Eight sets:color display?14?SVGA BW monitor:1?10?liquid crystal color monotor:1 u Function and features:?display mode:B,B\B,4B,B\M,M?speed under M-mode:1s,2s,3s,4s,5s,6s,7s,8s/frame?Magnification:x0.8,X1.0,X1.2,X1.5,X1.6,X2.0,X2.4,X3.0?Depth shift;up/down,left and right,black_white reverse?local zooming?English stages STC adjustment and overall gain,adjustment and display of the dynamic range?Singal point,multi-section and dynamic focusing?Changeable probe?Changeable frequency?]changeable angel?frame correlation?image post processing,Gamma correction and image enhance?pseudo color display?freeze/unfreeze?up/down,black/white,left/right reverse?can display time,patients information,annotation automatically?auto display 32 kinds of body marks with probe marks?measurement: distance,circumference,area,slope,heart rate,cycle,pregnant weeks,EDD,fetus age,fetus weight?puncture guid,calculus positioning?power saving and self-check?cine loop:1024 frames(option)?alternative Chinese/English menuu Option: ?Thermal printer?1024 frames cine loop function?6.5MHZ 80 array vaginal probe?7.5MHZ high frequency 80 array linear probe