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Intelligent remote transmission valve-controlled ultrasonic water meter/flowmeter integrates ultrasonic water meter, electric valve, and measurement and control terminal to realize remote monitoring of water intake and water metering and remote/automatic control of valves, and supports tiered water price and prepayment management. The valve-controlled water meter can accurately measure the instantaneous flow and cumulative flow in the pipeline, automatically control the valve switch according to the user's remaining water volume, and can also remotely control the valve switch through the central supervision software. It can be applied to water resource intake metering monitoring, remote meter reading and valve control for large tap water users.

Vertical Woltmann water meter, the impeller (vertically installed) rotates in a perpendicular direction to the water flow direction. This series of products has full flow detection, the measured water flow is axial water flow, low inlet and high outlet, high measurement accuracy, wide range, and stable measurement. The detachable design is convenient for after-sales maintenance. Optional signal transmission device, a variety of pulse signal output (non-magnetic, Hall, magnetic resistance), non-destructive installation of remote transmission terminal to realize water use data collection.

Horizontal Woltmann water meter, the impeller (horizontally installed) rotates in a horizontal direction with the direction of water flow. Full flow detection, the measured water flow is a horizontal flow, the inlet and outlet water heights are the same, the measurement accuracy is high, the range is wide, and the metering is stable. The detachable dry movement design can ensure clear water meter readings and convenient after-sales maintenance. Reserved non-magnetic sampling interface, optional signaling device, a variety of pulse signal outputs (non-magnetic, Hall, magnetic resistance), lossless installation of remote transmission terminal to realize water use data collection.

Intelligent remote transmission valve control mechanical water meter, adopts IP68 waterproof technology, stand-alone and network versions are available in Chinese and English. The valve automatically switches regularly (anti-scaling, flushing and drainage), anti-magnetic attack technology, intelligent remote transmission valve control function, accurate measurement. Low-power valve, integrated circuit design, flexible switching, long service life. It can also be based on IC card to realize the function of paying first and then using water. Widely used in factories, chemical industry, schools, community properties and water resources and other fields.

Intelligent pipeline noise leakage meter, independently developed by DWI, based on acoustic vibration detection technology, locates the leakage point by receiving and analyzing the sound and vibration signals generated by pipeline leakage, can automatically monitor the leakage noise and upload it to the management platform, and actively warn through advanced leakage detection algorithms, quickly and efficiently determine whether there is a leakage point on the pipeline, and use relevant algorithms to achieve precise positioning.

The intelligent pipeline leakage hydrophone is based on sound wave detection technology. When a pipeline leaks, the specific frequency sound waves emitted propagate along the fluid to both sides. The hydrophone captures these sound wave signals through a high-sensitivity microphone, and automatically monitors and uploads them to the management platform. Through the leakage detection algorithm, it actively warns, quickly and efficiently determines whether there are leaks on the pipeline, and uses relevant algorithms to achieve precise positioning. The hydrophone has a very high sensitivity to low-frequency water leakage signals and is very suitable for accurate positioning of leaks in plastic pipes, long-distance pipes and large-diameter pipes.

The digital pressure transmitter is a high-precision, high-stability intelligent pressure measurement product. It uses digital technology, combined with the design and manufacturing technology of piezoresistive pressure transmitters, precise digital temperature compensation and nonlinear correction technology, integrated structural design and standardized signal output. It is small in size, high in precision, light in weight, and has a wide range of coverage. It is suitable for places in various industries where precise measurement of fluid pressure is required.

The high-frequency pressure transmitter is a high-frequency response pressure transmitter. This product uses a piezoresistive pressure sensor with a stainless steel isolation diaphragm with a flush membrane structure as a signal measurement element. It is equipped with a dedicated high-frequency response signal processing circuit to convert the signal of the measuring element into a standard current or voltage output signal. It is suitable for dynamic pressure measurement occasions and can effectively capture water hammer/burst pipe signals in the pipeline network and record the process of water hammer/burst pipe events.

The wireless remote pressure gauge is an ultra-low power LCD digital display instrument with wireless communication function. It can be equipped with a variety of network forms and power supply forms. The instrument reports according to the timing and alarm. Users can view data and configure parameters through magnetic control buttons, computer software, Bluetooth software, wireless communication, etc. It is suitable for harsh open-air sites to achieve real-time pressure monitoring and wireless transmission of pressure data. It can detect real-time data of many monitoring points in a large area. It is suitable for fields such as petroleum and petrochemicals, oil and gas extraction, urban gas, water supply networks, etc. that require unmanned and remote monitoring.

The mono crystal silicon intelligent pressure gauge adopts advanced single crystal silicon piezoresistive technology, which greatly improves the accuracy, stability and anti-interference ability of traditional pressure transmitters, and can reach up to 0.075 platinum level accuracy (0.075%FS). The product can be used for pressure measurement of liquid, gas or steam. The transmitter outputs a standard 4-20mA current signal and supports HART protocol, which can realize remote setting, monitoring and other functions. It is especially suitable for demanding process industrial fields.

Digital constant voltage residual chlorine sensor, based on the constant voltage principle, measures the residual chlorine content in water. A stable potential is applied between the polarization electrode and the reference electrode. Different components to be measured generate different current intensities under this potential. The concentration of the measured component is calculated by analyzing the current signal. The residual chlorine sensor has a simple structure and is easy to clean and replace. At the same time, the membrane and reagent do not need to be replaced during the use of the electrode. The maintenance is simple, ensuring the stability, reliability and accuracy of the instrument for long-term operation. The sensor outputs a standard RS485 (Modbus/RTU protocol) digital signal.

Digital total chlorine/residual chlorine sensor, developed based on membrane ampere method, special permeable membrane is not affected by pH value changes and has the characteristics of resistance to chemicals and surfactants. The sensor adopts membrane electrode measurement technology, the sensor does not form interference in the electrolyte, has higher accuracy, stability and anti-interference ability; real-time process measurement, no need to replace reagents, no waste liquid discharge, not affected by sample color, with RS485 output.