The Sonotrax Pro Doppler has backlight and audio playback. All these models have audio output, which can be connected with earphones or a recorder. Additionally, you can operate the unit with a 4MHz or 8MHz probe for vascular diagnosis.
Features:
Ergonomic design, compact, and light
Easy-to-use
Large backlight LCD display
Accurate FHR detection with clear sound
High sensitivity interchangeable probe
Support for 2MHz, 3MHz, 4MHz, 8MHz waterproof probes