Specification:
Frequency range:Main unit：**0±*0~***0±***0HZ
                 probe：**0±*0~***0±**0HZ
External output：loudspeaker, single channel with earphone jack
Emissive waveform: sine wave
Ultrasonic frequency：5.0MHz±*0% ã€8.0MHz ±*0%
Ultrasonic frequency average intensity： < *0mW/cm2
Velocity measure range：0～**0 cm /s.
Test error：≤*0%（relative error）
Overall sensitivity：> **0dB
Printing speed：*0cm/min,*0cm/min ,display synchronize with print
Frequency mode display range：0.2 KHz～7.0 KHz
LCD Display：**8 X *4 dots, LCD cursor indicates blood stream speed, double display mode for the spectrum and velocity. 
Power indication: blue LED indication
Charge indication：the charge indicator is yellow when charging and become green after full charge
Alarm indication: the indicator light is red when the lack of battery
Lack of paper indication: When the recorder is lack of paper, the indication light is red
Outline dimension：**0***0***5 (mm)
Net weight：1.9 Kg
Environment condition: 
       Temperature：*5℃ ~ **0℃ , 
       Humidity：<*0ï¼…, 
       Atmospheric pressure：*6kPa ~ **6kPa.
   Transport and storage environment：
   Temperature：**0℃ ~ **5℃ ,
       Humidity：<*0ï¼…,
       Atmospheric pressure：*6kPa ~ **6kPa

Certification: 
The product approved by CE, Free sale certification. If you need copy of the files, please contact our sales.

Package:
Single Unit     Dimension: *3cm**4cm**3cm        Gross Weight: 5.5kg
Normative collocation: charger, gel, operation manual,  warranty card