... by pregnant woman.It contains components of ultrasonic signal transmitter and receiver, analog signals processing unit, FHR calculating unit, ... ) 35 mmWeight: About 180 g (including batteries)QualificationPassed FDA and CE Certificate:ISO13485, CE, FDA FDA NO: K082480Listing Number ... US CONTEC Medical Systems focusing on research, manufacture and distribution of medical equipments, was founded in 1992 ...