Features of Portable Bidirectional Vascular Doppler MSL620VP:

MSL620VP TFT LCD displays the wave of the instant blood flow average velocity and strength. It prints the monitoring blood flow curve simultaneously
Detect the blood stream status of arterial/venous by 8MHz probe
Detect the blood flow average velocity, detect the result of fingers/toes and part of body's vein anatomies operation
MSL620VP(TFT) portable bidirectional vascular Doppler with large color LCD screen
Built-in ARM microprocessor & real-time displays blood flow velocity waveform
Can store 50 detected waveforms
High-speed USB/RS -232 port, can be connected directly to computer to analyze, store, and print the waveform data
With thermal printer and can record the waveform of blood stream when it is connected with the power supply

Specification of Portable Bidirectional Vascular Doppler MSL620VP:

Classification: Safety classification: Model BF /Ⅱdevice/in side power classication.     
Water-proof degree：Common device, without function of water-proof.
Safety degree of flammable gas:  Unsuitable to use under the flammable gas.  
Working mode: continuous work
Frequency range：Main unit ：200±80~5000±1000HZ
Probe ：350±80~2500±500HZ
External output：loudspeaker, single channel with earphone jack(optional) 
Emissive waveform: sine wave
Ultrasonic frequency：5.0MHz±10% 、8.0MHz ±10%
Ultrasonic frequency average intensity： < 50mW/cm2
Velocity measure range：0~100 cm /s. 
Test error：≤20%（relative error）
Overall sensitivity：> 100dB
Printing speed：40cm/min,60cm/min ,display synchronize with print.
Frequency mode display range：0.2 KHz~7.0 KHz
LCD Display：240*320dots TFT, LCD cursor indicates blood stream speed, 
double display mode for the spectrum and velocity.
Power supply: AC/DC. Input AC power: 110-240V  50Hz/60Hz; Output DC power: 24V/1.5A 
Power consume：<20W；built-in Ni-MH rechargeable battery：14.4V/1600 mAh.
Fuse： 
for adapter:  3.15A,
for rechargeable battery:1.75A，
for charging circuit inside: 1.5A.

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：210*220*105 (mm)
Net weight：1.9 Kg
Environment condition: 
Temperature：+5℃ ~ +40℃ , 
Humidity：<80％, 
Atmospheric pressure：86kPa ~ 106kPa.
Transport and storage environment：
Temperature：-10℃ ~ +55℃ ,
Humidity：<80％,
Atmospheric pressure：86kPa ~ 106kPa