Prepaid ultrasonic (remote transmission) smart water meter is a new type of smart water meter developed by combining the advantages of ultrasonic water meter and prepaid IC card water meter. Its main functional features include:

1. Ultra low initial flow rate completely eliminates the running, emitting, dripping, and leaking phenomena of mechanical water meters, making it a true anti drip and leak meter;

2. Equipped with prepaid IC card recharge function, it can purchase water first and use it later, reducing the workload of charging units;

3. Equipped with remote valve control function, strengthening the supervision of water supply units, and real-time understanding of each user's water usage situation;

4. Waterproof performance above IP68, can work normally after long-term immersion in water;

5. Good anti freezing performance, due to the use of ultrasonic transmission and the absence of mechanical dials, there is no risk of water meter dials freezing and exploding in winter caused by freezing;

6. The whole meter has a long service life because the measurement and control of the whole meter are fully electronic, without mechanical wear and tear, so the service life can reach more than 20 years, reducing the usage cost of water units.