Huntleigh Doppler Probe 4MHzHuntleigh Doppler Probe 4MHz The Huntleigh Doppler Probe 4MHz is engineered for deep vessel detection, delivering clear, reliable audio signals for accurate vascular assessments. Its lower frequency allows for optimal penetration, making it ideal for clinical and diagnostic use where deeper blood flow monitoring is required. Built with Huntleighs trusted quality, this probe ensures comfortable handling, durable construction, and seamless compatibility