... /GYN, Urology, Cardiology, Small parts examination etc.4. 3 step multi-frequency 5. Measurement: Distance, circumference, area, fetal weight, fetal heart rate6 ... ×390×410StandardC1-2/60R/3.5MHz Multi-freq Convex ProbeOptions1). L4-1/7.5 MHz Multi-freq Linear Probe2). EC3-1/13R ... /6.5 Multi-freq MHz Convex Probe3). EL1-1 ...