It can instead of other water meter and it has other characters: high accuracy¡¢better reliable¡¢no moving part¡¢no need to set data£¬install in any angle.Ultrasonic time-difference principleMeasuring water or other liquidAccuracy : ¡À1%£¬¡À2%Repeatability : 0.5%Measuring period: 3S£¬1~31S(selection)Battery can work 6-10years£¬or two line powerLowest measuring velocity of liquid 0.01m/sNo pressure lost and moving parts£¬no nursing for 10 yearsPipe length designing according to the normal water meterIP68£¬can working under water lower than 2 metersFoundry in mould ,no revealDN15-1000mm Ceramic sensor apply to £­40¡æ~160¡æOver look type¡¢normal type¡¢separate type