Frequency (Hz): 4.0 - 12.0 MHz. Warranty: 90 days Applications: Anesthesia, Vascular, Superficial, Musculoskeletal Compatible: Philips CX30; Philips Sparq The Philips L12-4 Linear Array transducer has a frequency range of 4.0 MHz. - 12.0 MHz. and supports the following applications: Anesthesia, Vascular, Superficial, Musculoskeletal. The Philips L12-4 transducer is compatible with: Philips CX30; Philips Sparq ultrasound systems. Form Factor: Linear Array Applications: Anesthesia, Vascular, Superficial, Musculoskeletal Frequency Range: 4.0 - 12.0 MHz. Compatibility: Philips CX30; Philips Sparq Return Policy90 days warranty Return in case of manufacturing defects Return for incopatibility assumed by the buyer Tags: Ultrasound Probe