Specifications Standard probe: 3.5MHz Multi-freq Convex Probe ( 2.5-3.5-5.0MHz ) Options probes: 1. 7.5 MHz Multi-freq Linear Probe ( 6.5-7.5-8.5MHz ) 2. 6.5MHz Multi-freq Trans-vaginal probe ( 5.5-6.5-7.5MHz ) .Detecting depth: e 220mm; .Blind zone: d5mm; .Display mode: B; B+ B; B+ M; M; .Gray Scale: 256; .Local zoom: 2 times; . Image magnification: × 1.0, × 1.2, × 1.5, × 2.0 .Depth shift: B, B+ B modes real time shift; .Resolution: laterald 2mm; axiald1mm; .Frame correlation: B, B+ B modes 3 level; .Image reverse: up/ down; left/ right; black/ white; .Measurement: distance; circumference; area; heart rate; gestational week; fetal weight .Annotation: time; date; ID; age; sex; detecting depth; probe type; focus; frame correlation etc; . English conversion; .Cine-loop: 186 .Image load/ storage: 20 frames .Obstetric table: BPD; CRL; GS; FL; AC; HC; FW; EDD; .Body marks: e10 types with probe position; OB measurments: BPD, GS, CRL, FL, AD, HC, AC Gestation Age: 4th-43rd week Video output: PAL-D , VGA Monitor: 10 inch CRT Weight: 11.5 Kgs( including probe)