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The digital suspended solids sensor is based on the 90-degree infrared scattering method of the ISO7027 standard. It measures the suspended solids value of the sample according to the scattered light intensity of suspended particles in the water sample. The sensor uses a near-infrared LED as a light source, and even if there is color in the sample, it will not affect the measurement results. The unique protective structural design of the sensor detection surface can protect the sensor detection window to the greatest extent and avoid accidental collision damage to the sensor measurement surface during installation and use.

The digital infrared turbidity sensor uses 880nm infrared light double beam scattered light to measure sludge concentration, which can be used to measure high-concentration sludge wastewater. The measuring probe has a built-in 45° LED light source, which emits 880nm near-infrared light to the sample. After the light beam is scattered by suspended particles, it forms scattered light at 90° to the incident light, which is detected by the detector and calculated to obtain the sample turbidity. When measuring sludge concentration, scattered light at 140° to the incident light is formed and detected by the rear detector in this direction. Then the suspended matter detector calculates the signal strength detected by the front and rear detectors to give the sludge concentration value.

Digital colorimetric sensor, developed based on the transmitted light method, uses dual-beam measurement to automatically compensate for turbidity interference. It can measure the color of the medium and the change of color. As an online sensor, it can accurately measure the concentration of colored substances. The measurement results have good repeatability, linearity and extremely high resolution.

The digital transparency sensor is developed based on the transmitted light method. It measures the light radiation intensity in the visible light band and calculates the transparency of the water body. The sensor uses dual detectors to compensate for the effect of light source attenuation on the measurement; it comes with a cleaning brush to prevent impurities and microorganisms from attaching; it has RS485 output, standard MODBUS protocol, and supports various terminal networking.

Digital COD sensor, based on UV absorption method, adopts LED dual beam structure, measures organic matter concentration in water through UV254nm and 860nm absorbance, 254nm absorbance, and uses 860nm beam to measure turbidity to reduce interference with COD value. The sensor has RS485 output, standard MODBUS protocol, and supports various terminal networking.

Digital ammonia nitrogen sensor, no reagents required, green and pollution-free, can be monitored online in real time. Integrates ammonium ions, potassium ions (optional), pH and reference electrodes, automatically compensates for potassium ions (optional), pH and temperature in the water. Can be directly installed, convenient and quick. The sensor is equipped with a self-cleaning brush to prevent microbial attachment, making the maintenance cycle longer and having excellent reliability. RS485 output, supports Modbus protocol, easy to integrate.

Digital nitrate/ammonia nitrogen composite sensor, developed based on ion selection method, made of industrial-grade nitrate ion selective membrane electrode, selectively tests the nitrate ion content in water, with fast response speed and accurate measurement. Built-in temperature sensor, built-in temperature sensor, automatic temperature compensation, suitable for online long-term monitoring environment. Output RS485 digital signal, support MODBUS protocol.

Full spectrum water quality analyzer, no need for water sample pretreatment, no need for chemical reagents, the sensor can be directly measured by placing it in water. The light source emits full spectrum light from ultraviolet to visible light to the water sample, penetrates the water sample through the mirror window to the diode array detector, accurately subdivides the spectrum to measure different light absorbances, and then analyzes the concentrations of various substances based on the correlation analysis of field tests, experimental data and absorption spectra and various interferences (such as chemicals, turbidity, chromaticity, bubbles, etc.) and advanced algorithms that compensate for each other.

It can simultaneously measure multiple parameters such as CODcr, CODMn, BOD, TOC, SAC, nitrate nitrogen, chromaticity, turbidity/suspended solids, sulfide, chlorophyll a, etc.

The digital oil-in-water sensor uses ultraviolet fluorescence to monitor the oil content in water. It quantitatively analyzes the concentration of oil in water based on the fluorescence intensity emitted by petroleum and its aromatic compounds and conjugated double bond compounds after absorbing ultraviolet light. Aromatic hydrocarbons in petroleum can produce fluorescence under ultraviolet light excitation, and the value of oil in water is calculated based on the intensity of fluorescence. The sensor has RS485 output, standard MODBUS protocol, and supports various terminal networking.

Digital oil-in-water sensor, a digital sensor developed based on the ultraviolet fluorescence optical water quality analysis platform. The sensor emits ultraviolet light of a specific wavelength. When certain petroleum substances in the water sample absorb ultraviolet energy and become excited, they will emit fluorescence when they jump back from the high energy state to the low energy state. The intensity of the excited fluorescence is related to the concentration of the substance to be measured. The sensor has RS485 output, standard MODBUS protocol, and supports various terminal networking.

Digital blue-green algae sensor, a digital sensor developed based on the fluorescence optical water quality analysis platform. The sensor uses a specific wavelength high-brightness LED light to excite the blue-green algae in the water sample. The phycocyanin or phycoerythrin in the blue-green algae will emit fluorescence. The high-sensitivity photoelectric sensor in the analyzer will capture the weak fluorescence signal and convert it into a blue-green algae concentration value. The sensor has RS485 output, standard MODBUS protocol, and supports various terminal networking.

Digital chlorophyll sensor, developed based on fluorescence optical technology, uses a group of LED lights of a specific wavelength to illuminate the chlorophyll molecules in the algae. The chlorophyll molecules partially absorb the light and excite it in the form of fluorescence of a specific wavelength. The fluorescence intensity is detected to calculate the chlorophyll concentration. The sensor has RS485 output, standard MODBUS protocol, and supports various terminal networking.