Ultrasound Center Frequency : 2MHz/3MHz.

Intensity:< 10mW/cm2.

Sensitivity : 10-12 weeks Onward.

Heart Rate Counting Range : 50- 240bpm.

FHR Accuracy :±2% of range.

Battery Type : 1.5Vx2(AA Type).

Battery Life : About 360min(Continuously use).

Pc Interface : Sound Card (Optional).

Waterproof Prob

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