2800-136 Sumner Blvd., Raleigh, NC 27616
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. Comes with 3MHz Waterproof Probe.