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this type of water meter adopts a screw-wing impeller inside. the pressure loss is small and the measurement accuracy is high. the appearance is small and exquisite. the installation space is small. the vertical installation saves nearly half of the installation space compared with the conventional horizontal water meter. it is a far-reaching water meter with excellent overall performance. the built-in nb-iot iot module and chip have the advantages of stable network, convenient remote meter reading, remote remote control, etc. it is an iot water meter that is worthy of preference by the water company and water resources management department.

一、technical characteristics：

• the use of a number of original patents (name: an electronic screw-wing smart small-caliber water meter; screw-type small-caliber water meter internal fluid transmission; electronic water meter automatic error correction verification, etc.), the first domestic vertical screw technology it is applied to small-diameter water meters and is internationally leading in patent technology.

• vertical installation, occupying space is too small, the performance is super good; the valve can be added in the table to support the remote control valve function. usage data hd lcd display, electromechanical dual display

• choose internationally-used ppo materials that meet the requirements of pure water, healthy and environmentally friendly

• electronic high-sensitivity water meter with low starting flow. automatic error correction

• using nb-iot narrowband internet of things, through the nb-iot network management platform, daily reading water consumption data

• low-power design; built-in battery can maintain the meter for normal metering for more than six years. manage battery voltage in real time through management platform software for easy management

• low cost, the dn15/20/25 body is the same, only need to configure different pipe joints

• there is a real-time clock in the table, and the clock can be calibrated by the host computer.

• step water price can be set to support prepaid or postpaid

• this nb water meter, straight pipe section design, internal screw-wing structure, less water storage in the cavity, has a good anti-freeze performance.