DMTFW Series Ultrasonic Water Meter is a battery-powered transit-time flow meter utilizing advanced digital processing technology. It conforms to EN1434 Standard. The meters contain no moving parts and don't need any external power, with advantages of ultra-low power consumption, high accuracy and reliability. The meters are designed for easy installation. Commonly, it is unnecessary for customer to set any parameters in the application field. The meters have the same conduit length with industrial mechanical water meter but can be used just as conveniently as mechanical water meters.