This product adopts the suspended screw-wing internal structure, the straight pipe section design, the axial direction of the impeller and the axial direction of the water supply pipe, with the characteristics of wear resistance, small pressure loss and small starting. Built-in LoRa IoT chip, using LoRa IoT network to achieve remote reading function of water meter usage data. The water meter has a built-in stainless steel ball valve, which can realize the remote meter reading remote control valve function. For malicious users, it can remotely close the valve. It is suitable for management and metering charges of large-capacity water meters such as enterprise users, supporting master tables, and specific users. It is easy to maintain and easy to use. It is the preferred water resource management department to remotely manage water meters and large-caliber IoT water meters.

一、Technical characteristics：

• The technology is advanced, adopts the suspended screw-wing internal structure, the straight pipe section design, the axial direction of the impeller is the same as the axial direction of the water supply pipe, and has the characteristics of wear resistance, small pressure loss, small starting behavior, and longer service life than the rotary water meter;

• Table valve design，Built-in valve，Remote data remote control valve，Optional prepaid or postpaid options。Prepaid method，Amortization automatic closing valve，It is the preferred measuring instrument for water resources management and charging departments.；

• Each specification has wireless remote transmission type, wired remote transmission type, and card prepaid option;

• Wireless remote transmission type, frequency range 470MHz~510MHz, wireless ad hoc network communication mode, each water meter can act as a route, supporting up to 7 levels of routing. The management software can view the battery voltage in real time for easy replacement.

• Wired remote transmission type, M-BUS/RS485 bus communication mode, low power consumption design, normal working state is powered by communication line, built-in lithium battery can ensure the normal measurement of water meter for more than six years in the case of communication line disconnection；

• High precision, wide range, usage data HD LCD display, electromechanical dual display

• Diversified installation methods, horizontal or vertical installation, measurement accuracy 2

• Low cost, DN32\40\50, water meter size is the same, as long as different specifications of pipe joints and connecting threads can be configured to dock different pipe diameters

• Excellent moisture resistance, passed the IP68 waterproof rating test, can be used with confidence