Philips L18-5 Linear Array transducer has a frequency range of 5.0 MHz. – 18.0 MHz. and supports the following applications: Breast, Musculoskeletal, Superficial, Vascular, Venous. The Philips L18-5 transducer is compatible with Philips Affiniti 70, Philips EPIQ 5, Philips EPIQ 7 and Philips Affiniti 50.