1.Ultrasonic water meter 2.Double display flow meter 3.Waterproof,damp-proof,anti-attack 4.CE,ISO14001,9001 General Introduction Replaceable Battery Ultrasonic Water Meter is favored by water utility companies. It adopts RF card technology with wireless data transmission, waterproof, damp-proof and anti-attack. With prepaid water meter, the administrative sections can increase efficiency and ...