portable vascular doppler probe 2 4 5 8 mhz essential by my podologieProbe for Portable Vascular Doppler 2 4 5 8 MHz Essential by My Podologie General characteristics: Probe for Portable Vascular Doppler Essential by My Podologie Compatible with portable vascular Dopplers Essential accessory for vascular examinations Simple and quick to use in the office or at home Available probes: 2 MHz: fetal 4 MHz: deep vessels 5 MHz: moderately deep vessels 8 MHz: peripheral vessels