Edan Sonotrax Pro Fetal Doppler Baby Heart Monitor
Sonotrax Lite is for simple auscultation (intermittent listening). Sonotrax Basic is a high performance model with FHR digital LCD display. Sonotrax Pro has backlight and audio playback. All these models have audio output, which can be connected with earphone or recorder. As well, you can operate the unit with 4MHz or 8MHz probe for vascular diagnose.