Magnetic Flow Meters
QTRD91 non-contact radar level meter principle
Ultrasonic Level Meters
Handheld ultraosnic flow meter with bracket sensor
Handheld ultraosnic flow meter is one type of transmit time type flow meter.
Customer could clamp the sensor on the pipe and measure the flow rate directly.
It's very convenient and don't need to cut off the pipe.
The acccuacy could reach 1% and the battery could work 24 hours after changed one time.
The bracket type sensor is one of the advanced model.
Customer could put the sensor on pipe and there has scale to measure the installation distance.