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.
Features:
Ergonomic design, compact and light
Easy-to-use
Large backlight LCD display
Audio Recording and Playback
3MHz Waterproof Interchangeable Probe
Blue Backlight, Battery Indication, Probe Frequency Detection
3 Working Modes ( Real-time, Average, Manual )
Carry case
Warranty
2 Year warranty on the Sonotrax Pro Fetal Doppler main unit
1 Year warranty on the accessories or disposables