Siemens 9EVF4 Intra Cavity transducer has a frequency range of 4.0 MHz. – 9.0 MHz. and supports the following applications: Neonatal, Obstetrics, Gynaecology. The Siemens 9EVF4 transducer is compatible with: Simens/Acuson S2000, Simens/Acuson SC2000 ultrasound systems.