The ultrasonic flow meter works with Ultrasonic Technology and Measures by Principle of time difference. There is a pair of ultrasonic vibrator and receiver in the exterior of pipe emitting in two directions and both face to face. The light vibrator will emit ultrasonic signals down stream and reversed stream. Measuring the time difference of the two directions transmission, you will get the flow rate of the fluid; then input the diameter of pipe, you will get the flow.

EU-106 Ultrasonic Flow Transmitter is a fixed mounted flow meter, can work alone without a LCD and Keypad,and can modify the parameters from the Remote Unit, with better accuracy and stability. Their electronic enclosures are rated as IP68, so this products could be installed below the water, then there will be no limited for the installed place.