Ultrasonic frequency:2.0 MHz(Standard)3.0MHz/5.0MHz/8.0MHz(Optional),error: ± 10% 

Ultrasonic powerintensity:≤10mW/cm2

Comprehensive Sensitivity: ≥90dB

Measurement range: 50bpm–210 bpm Error:±2bpm

Isptp:≤0.1Mpa

Doppler Frequency: 0-3KHz

Power Consumption:≤1.5W

Power off automatically:after 3minutes

Working Mode:Continuous ultrasounddoppler

Working temperature:5-40???  

Humidity:< 80???  

Atmospheric pressure:86-106kPa