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Residual chlorine/total chlorine online analyzer, establishes a zero reference point by measuring the blank absorbance, and compensates the color and turbidity of the sample before measuring chlorine; then, the indicator solution and buffer solution are added to the sample, and the sample is color-developed by the magnetic stirrer; then, the colorimeter measures the absorbance through the sample, and the obtained absorbance is compared with the reference standard to obtain the measurement result. The analysis cycle only takes about 2.5 minutes.

Digital hardness sensor, developed based on ion selection method, is an electrochemical sensor based on sensitive membrane. This membrane is a component that makes the electrode selectively respond to specific ions. It is made of industrial-grade PVC membrane hardness ion selective electrode, which selectively tests the hardness ion content in water; fast response speed and accurate measurement; built-in temperature sensor, automatic temperature compensation, suitable for online long-term monitoring environment; digital sensor, direct output RS485 digital signal, support MODBUS protocol;

The online water hardness analyzer is a high-efficiency instrument that uses the principle of titration colorimetry to detect the total water hardness online for a long time. The online water hardness analyzer is a process-based, real-time online continuous monitoring of water hardness; it is equipped with an over-limit automatic alarm function, which has the advantages of accuracy, real-time, high efficiency and low labor cost in replacing manual detection. It is used for water quality detection in production processes such as calcium/magnesium hardness detection in boiler softening water, environmental protection, civil water, industrial water and treatment, and sewage discharge.

Fire hydrant anti-theft water remote sensing terminal/fire hydrant intelligent alarm modification device, directly replaces the fire hydrant water outlet cover, transforms ordinary fire hydrants into intelligent fire hydrants, remotely monitors the water outlet, location, and status of fire hydrants in real time, and automatically reports the alarm when the fire hydrant is damaged or water is stolen. Working mechanism: The fire hydrant outlet generally has two diameters of 65mm and 100mm. When the 65mm outlet outlet discharges water, the water pressure in the fire hydrant triggers the float switch in the device after the water is discharged, and the alarm is immediately reported; when the 100mm outlet outlet uses water, when the alarm device is turned, the tilt switch in the product is triggered, and the alarm is immediately reported.

Intelligent fire hydrants/water hydrants realize water card metering and support prepaid and postpaid charging methods. It standardizes the water order of municipal garden and environmental protection water use departments, effectively curbs the phenomenon of fire hydrants stealing water, and plays a significant role in reducing the production and sales gap of water companies. It realizes fixed-point water collection, metering and charging, and remote supervision for urban ecological water use such as gardening, road spraying, and sanitation. It can timely detect situations such as fire hydrant knockdown/damage.

Chemical multi-parameter water quality online monitor, using DPD reagent and fully automatic clean colorimetric analysis technology to measure residual chlorine/total chlorine, can simultaneously integrate up to 8 parameters such as residual chlorine, total chlorine, turbidity, PH, conductivity, temperature, pressure, ORP, etc. Users can freely combine and integrate according to their needs, with the advantages of product diversity, low cost and rapid deployment; fine dustproof, waterproof, lightning-resistant high-standard design, durable; integrated with a variety of communication methods, reducing the delay caused by manual management, and providing real-time data support.

Electrode method multi-parameter water quality monitor adopts electrochemical sensing technology and integrates multi-parameter measurements such as residual chlorine, total chlorine, turbidity, PH, conductivity, temperature, pressure, ORP, etc. Measurement does not require chemicals and has low maintenance costs; users can freely combine and integrate according to their needs, with advantages such as product diversity, low cost and rapid deployment; sophisticated dustproof, waterproof, and lightning-resistant high-standard design, durable; integrated with a variety of communication methods, reducing the untimely nature of manual management and providing real-time data support.

The small multi-parameter online water quality monitor/secondary water supply water quality monitor is a compact, easy-to-operate and easy-to-maintain electrochemical water quality analyzer. The calibration cycle is reduced to once every 6 months, which greatly reduces the cost of on-site operation and long-term maintenance. It is widely used in drinking water, secondary water supply, and swimming pool water quality monitoring in various low-budget rural and urban areas. The system integrates a remote transmission module to reduce the delay caused by manual management and provide real-time data support.

The outdoor battery-powered telemetry terminal integrates 4G and NB-IoT telemetry modules to realize data collection, remote transmission, analysis and calculation, and over-limit alarm. It has the characteristics of low power consumption and IP68 waterproof. It can be adapted to various sensors such as water level, water temperature, and water quality. The terminal is equipped with a battery, which is especially suitable for monitoring sites with no power supply conditions and high requirements for waterproof and dustproof. It can be used in a variety of occasions: pipe network monitoring, groundwater monitoring, field monitoring, etc.

The universal battery-powered telemetry terminal is an intelligent device based on 4G, 5G, and NB-IoT networks for data collection, remote transmission, analysis and calculation, and over-limit alarm. It has the characteristics of low power consumption and IP68 waterproof. It can be adapted to various sensors such as water level, water temperature, and water quality, and has a dual-interface design (expandable). The terminal is equipped with a large-capacity battery and is particularly suitable for monitoring sites with no power supply conditions, high frequency of data reporting (high real-time requirements), and high requirements for waterproof and dustproof.

Intelligent Manhole Cover Remote Data Logger: the equipment terminal integrates inclination detection sensor, GPS/Beidou positioning module, and wireless communication module, which can detect the current inclination angle of the manhole cover. When the manhole cover moves abnormally, an alarm is triggered, and the alarm information is sent to the cloud platform through the wireless network, supporting timed reporting and automatic wake-up of abnormal movement. The terminal interface can be expanded to connect liquid level, gas and other monitoring sensors to monitor events such as manhole cover being opened, displacement, manhole cover being immersed in water, and harmful gas exceeding the standard. Suitable for manhole covers of various purposes and materials.

Solar intelligent manhole cover, the manhole cover surface is embedded with a solar power supply system), no need to replace batteries; at the same time, the antenna is embedded on the outside of the manhole cover, which effectively solves the problem of poor underground communication. It can monitor and warn the status of underground equipment and manhole covers, remotely monitor the underground water level data and the safety status of the manhole cover of the drainage network inspection well in real time, and report to the monitoring center, timely discover the abnormality of the manhole cover and the liquid level, etc., and solve the problems of wet and flooded underground monitoring environment, power supply difficulties, and poor communication.