Less Zero treatment Function: Under normal working status, the valve will shut off while the pre-payment meet to zero. If the valve happens to malfunction, the record for negative data will be made as well. It will be deducted in the next pre-payment.

Reimbursing Function: Balance of pre-payment will be refund to the TM card while the appliance must be replaced because of its fixed quality period, such as 6 years.

Back-check Automatic Function: Appliance can automatically check back the used volume per month of the latest 12 months.

Data Storage Function: ?All the data in the executer can be stored for over 10 years.

Password and Protection Function: Using the TM card imported from USA, automatically identifying the dada process of one card / one water meter.

Disturbance Inspection Function: while the strong magnetism is disturbing the measuring data, appliance will automatically record the date of unconventionality.

Malfunction Inspection Function: Appliance can inspect automatically the malfunction comprehensively so that technicians maintain it very easily.

Low Pressure Inspection Function: the valve will be shut off and alarm is supplied while the appliance has inspected the battery is under very low pressure. Meanwhile, it reminds of replacing the battery on LCD.

Water-drop Measuring Function: Appliance system can still measure accurately the water passing volume while water are dropping. The initial fluxion is better than the standard level.