GE 8C Micro-Convex Array Ultrasound Probe Transducer Frequency : 3.5-11.5MHz Compatible Systems : Logiq3,Logiq5,Logiq 7, logiq 9 , logiq S6 , Vivid 7Expert, Vivid 7Pro,Logiq400,LogiqP5,LogiqA5,Vivid 7