what's the features of Handheld Ultrasonic Doppler Flow meter?

what's the application of hand type ultrasonic flow meter?

Handheld Ultrasonic Flowmeter using clamp-on sensors to measure liquid flow. The installation process is very simple, all Chinese human-machine interface, more easy to operate. Particularly suitable flow balance testing and flow monitoring: drinking water, river water, sea water, cooling water, hot water, industrial waste water, lubricating oil, diesel oil, fuel oil, chemical liquids.

what's the features of Handheld Ultrasonic Doppler Flow meter?

1) non-contact measurement, small size, light weight, easy to carry.
Simple and easy to install 
2) sensors for use in measuring the sound of the media guide pipes of various sizes.
3) Measure the process does not require destruction of the pipeline, no cut-off, the sensor is not in contact with the measured medium, no pressure loss.
4) suitable for measuring metal pipes, plastic pipes and other pipes acoustically transparent material.
5) Built-in rechargeable battery, more than 12 hours of continuous work time.
6) Intelligent scene print function, ensure the integrity of the flow of data.
7) Single / Dual channel
8) portable, mobile measurement