SonoTrax Doppler, Pro Unit with 2MHz Probe | Hopkins Medical Products
EDAN Sonotrax Basic Fetal Doppler | facelake
Huntleigh Fetal Dopplex w/ fixed 2MHz Probe
CONTEC10B New Pocket Fetal doppler 2Mhz handheld pregnant heart rate m – ContecEurope
Edan SD3.02 Fetal Doppler with Interchangeable Probes, OLED Display of FHR Readings, and Built in Speaker, Standard Configuration Includes 2MHz, Uses AA Batteries