Product: EdanUSA Sonotrax II PRO: FHR Display, Recorder, Backlight & Rechargeable Battery.
Brand: EdanUSA
The SonoTrax Series II Pro Ultrasonic Pocket Doppler provides care givers with the most cost effective solution to meet the routine obstetric and vascular requirements. Includes 3MHz probe.
Built in rechargeable battery for 4 hours continuous work
Large backlight LCD display
Accurate FHR detection with high-fidelity sound effect
Interchangeable waterproof probe
Support 2MHz, 4MHz, 5MHz, 8MHz waterproof probes. Probes sold separately.

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