Products
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Industrial Online Analyzer Ammonia Nitrogen Sensor Digital RS485 CS6714SD
Digital ISE Sensor Series CS6714SD Ammonium Ion sensor is solid membrane ion selective electrodes, used to test ammonium ions in water, which can be fast, simple, accurate and economical;The design adopts the principle of single-chip solid ion selective electrode, with high measurement accuracy;PTEE large-scale seepage interface, not easy to block, anti-pollution Suitable for wastewater treatment in the semiconductor industry, photovoltaics, metallurgy, etc. and pollution source discharge monitoring;High-quality imported single chip, accurate zero point potential without drift. -
Water Turbidity Sensor Digital Online Rs485 Turbidity Sensor Water Quality Turbidity Meter CS7820D
The principle of the turbidity sensor is based on the combined infrared absorption and scattered light method. The ISO7027 method can be used to continuously and accurately determine the turbidity value. According to ISO7027 infrared double-scattering light technology is not affected by chromaticity to determine the sludge concentration value. The self-cleaning function can be selected according to the use environment. Stable data, reliable performance; built-in self-diagnosis function to ensure accurate data; simple installation and calibration.The electrode body is made of 316L stainless steel, which is corrosion-resistant and more durable. The seawater version can be plated with titanium, which also performs well under strong corrosion.
IP68 waterproof design, can be used for input measurement. Real-time online recording of Turbidity/MLSS/SS, temperature data and curves, compatible with all water quality meters of our company.
0.01-400NTU-2000NTU-4000NTU, a variety of measuring ranges are available, suitable for different working conditions, the measurement accuracy is less than ±5% of the measured value. -
CS6721D Nitrate Ion Selective Electrode RS485 Output Water quality Sensor ca2+
Product advantages:
1.CS6721D Nitrite ion single electrode and composite electrode are solid membrane ion selective electrodes, used to test free chloride ions in water, which can be fast, simple, accurate and economical
2.The design adopts the principle of single-chip solid ion selective electrode, with high measurement accuracy
3.PTEE large-scale seepage interface, not easy to block, anti-pollution Suitable for wastewater treatment in the semiconductor industry, photovoltaics, metallurgy, etc. and pollution source discharge monitoring
4.High-quality imported single chip, accurate zero point potential without drift -
Salinity Tester Meter For Aquaculture Digital Monitor Water Quality Analyser CS3743D
Product Description
For continuous monitoring and control of conductivity / TDS and temperature values of aqueous solutions. Widely used in power plants, petrochemical, metallurgy, paper industry, environmental water treatment, light industrial electronics and other fields. For example, monitoring and control of raw water and water quality of water production equipment such as power plant cooling water, recharge water, saturated water, condensate water and furnace water, ion exchange, reverse osmosis EDL,seawater distillation.The sensor is made from a combination of FDA-approved fluid receiving materials.This makes them ideal for monitoring pure water systems for the preparation of injectable solutions and similar applications.In this application, the sanitary crimping method is used for installation. -
Online Chlorophyll Sensor RS485 Output Usable on Multiparameter CS6401
Based on the fluorescence of the pigments to measurement the target parameters , it can be identified before the impact of algal bloom.No need for extraction or other treatment, rapid detection, to avoid the impact of shelving water samples;Digital sensor, strong anti-interference ability, long transmission distance;Standard digital signal output can be integrated and networked with other devices without controller. Installation of sensors on site is convenient and fast, realizing plug and play. -
ph ORP Controller Electrode ph meter Transmitter Water ph tds Tester CS2733D
Double salt bridge design, double layer seepage interface, resistant to medium reverse seepage. The ceramic pore parameter electrode oozes out of the interface and is not easy to be blocked, which is suitable for monitoring of common water quality environmental media. High-strength glass bulb design, the glass appearance is stronger. The electrode adopts low noise cable, the signal output is farther and more stable Large sensing bulbs increase the ability to sense hydrogen ions, and perform well in common water quality. -
Digital Conductivity Sensor Online TDS Sensor Electrode For Industrial Water RS485 CS3740PCD
Measuring specific conductivity of aqueous solutions is becoming increasingly important for determining impurities in water.The measurement accuracy is greatly affected by temperature variation, polarization of the contact electrode surface, cable capacitance, etc.Twinno has designed a variety of sophisticated sensors and meters that can handle these measurements even in extreme conditions.ItismadeofPEEKandissuitableforsimpleNPT3/4”process connections.Theelectricalinterfaceiscustomizable,whichisidealforthisprocess. Thesesensorsaredesignedforaccuratemeasurementsoverawideelectrical conductivityrangeandaresuitableforuseinthepharmaceutical,foodandbeverage industries,whereproductandcleaningchemicalsneedtobemonitored. -
CS3733CD Digital Conductivity Sensor
Designed for Pure, Boiler Feed water, Power Plant, Condensate Water.
Easy to connect to PLC, DCS, industrial control computers, general purpose controllers, paperless recording instruments or touch screens and other third party devices.
Conductivity sensor technology is an important field of engineering and technology research, used for the liquid conductivity measurement, is widely used in human production and life, as electric power, chemical industry, environmental protection, food, the semiconductor industry research and development, Marine industrial production and essential in the development of technology, a kind of testing and monitoring devices.The conductivity sensor is mainly used to measure and detect industrial production water, human living water, seawater characteristics and battery electrolyte properties. -
Digital Conductivity Sensor For Water CS3701CD
Designed for Pure, Boiler Feed water, Power Plant, Condensate Water.
Easy to connect to PLC, DCS, industrial control computers, general purpose controllers, paperless recording instruments or touch screens and other third party devices.
Conductivity sensor technology is an important field of engineering and technology research, used for the liquid conductivity measurement, is widely used in human production and life, as electric power, chemical industry, environmental protection, food, the semiconductor industry research and development, Marine industrial production and essential in the development of technology, a kind of testing and monitoring devices.The conductivity sensor is mainly used to measure and detect industrial production water, human living water, seawater characteristics and battery electrolyte properties. -
Online Blue Green Algae Sensor with Self-Cleaning SC6000BGA
Blue-Green Algae Monitor is an online analytical instrument for continuous, real-time measurement of phycocyanin (for freshwater cyanobacteria) or phycoerythrin (for marine species) in water. It operates on the principle of fluorescence: an excitation light source (typically at 590 nm for phycocyanin) stimulates the algae pigments, and the resulting fluorescence emission at 650 nm is measured and correlated to algal cell density (cells/mL) or pigment concentration (μg/L). This fluorescence method offers high sensitivity (detection limits as low as 100 cells/mL), fast response (seconds), and requires no reagents or sample preparation. The monitor features a submersible, waterproof (IP68) probe with a built-in wiper or air-blast self-cleaning mechanism to prevent biofouling, automatic temperature compensation (ATC), and digital output (RS-485, Modbus RTU) for seamless integration into SCADA or IoT platforms. Common applications include harmful algal bloom (HAB) early warning in drinking water reservoirs, lake and coastal water monitoring, aquaculture, and ballast water treatment. Typical range is 0–100 μg/L or 0–200,000 cells/mL. By providing real-time blue-green algae data, the monitor helps water utilities optimize treatment processes (e.g., coagulation, filtration, ozonation), prevent cyanotoxin release (e.g., microcystins), reduce chemical and energy costs, and ensure compliance with drinking water safety regulations (e.g., WHO guideline for microcystin-LR: 1.0 μg/L). Compared to laboratory methods (microscopy, HPLC), the fluorescence monitor eliminates sampling delays, reduces labor, and enables truly continuous, unattended operation, making it an essential early warning tool for proactive water quality management and public health protection.
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CS6401D Water Quality Sensor RS485 Blue-Green Algae Sensor
CS6041D blue-green algae sensor uses the characteristic of cyanobacteria having absorption peak and emission peak in the spectrum to emit monochromatic light of a specific wavelength to the water. Cyanobacteria in the water absorb the energy of this monochromatic light and release monochromatic light of another wavelength. The light intensity emitted by cyanobacteria is proportional to the content of cyanobacteria in the water.Based on the fluorescence of the pigments to measurement the target parameters , it can be identified before the impact of algal bloom.No need for extraction or other treatment, rapid detection, to avoid the impact of shelving water samples;Digital sensor, strong anti-interference ability, long transmission distance;Standard digital signal output can be integrated and networked with other devices without controller. -
CS3742D Conductivity Sensor
conductivity sensor is an analytical device for measuring the electrical conductivity of a liquid, which directly reflects its total ion concentration and purity. It operates on the principle of applying an alternating voltage between two or four electrode rings (typically made of graphite or platinum) to prevent polarization. The sensor includes a built‑in temperature sensor for automatic temperature compensation (ATC), ensuring accurate readings across varying temperatures. Conductivity sensors are widely used in water treatment (e.g., reverse osmosis, boiler feedwater), industrial process control, aquaculture, hydroponics, and environmental monitoring. They can measure from ultra‑pure water (0.055 µS/cm) to high‑concentration brines (up to 2000 mS/cm). Output options include 4‑20 mA, RS‑485 (Modbus), or digital protocols, enabling seamless integration into SCADA or IoT platforms. The sensor is housed in a durable, waterproof (IP68) body with anti‑fouling materials. Regular calibration ensures long‑term stability. By delivering real‑time conductivity data, the sensor helps operators optimize chemical dosing, monitor product quality, protect equipment from corrosion or scaling, and ensure regulatory compliance. It is an essential, cost‑effective tool for continuous, unattended water quality monitoring in both industrial and environmental applications. -
CS6602CD Digital RS485 Output COD BOD TOC Sensor
COD sensor is a UV absorption COD sensor, combined with a lot of application experience, based on the original basis of a number of upgrades, not only the size is smaller, but also the original separate cleaning brush to do one, so that the installation is more convenient, with higher reliability.
It does not need reagent, no pollution, more economic and environmental protection.On-line uninterrupted water quality monitoring.Automatic compensation for turbidity interference, with automatic cleaning device, even if long-term monitoring still has excellent stability.
Many organic compounds dissolved in water are absorbent to ultraviolet light. Therefore, the total amount of organic pollutants in the water can be measured by measuring the extent to which these organics absorb ultraviolet light at 254nm. -
CS6603CD Digital RS485 Output COD BOD TOC TURBIDITY Sensor
Digital RS485 Output COD Sensor is an advanced online instrument for continuous, real‑time measurement of Chemical Oxygen Demand (COD) in water and wastewater. Unlike conventional COD analyzers that rely on wet chemistry (dichromate digestion, colorimetry), this optical sensor uses UV‑vis absorption spectroscopy at multiple wavelengths (e.g., 254 nm for organic matter, 550 nm for turbidity compensation) to estimate COD without reagents or sample digestion. The sensor integrates a xenon or LED light source, a photodetector array, and a built‑in temperature sensor for automatic compensation (ATC). It directly outputs COD values in mg/L via RS‑485 (Modbus RTU), enabling plug‑and‑play integration into SCADA or IoT platforms. Its rugged, waterproof (IP68) housing and low‑maintenance design (no pumps, no tubing, no reagents) are suitable for continuous submersed operation in wastewater influent/effluent channels, industrial discharge, and surface water monitoring. Typical COD range is 0–2000 mg/L, with response time of < 30 seconds. While optical COD sensors require site‑specific calibration against standard dichromate methods, they provide rapid trend data and early warning of organic pollution spikes, helping operators optimize aeration, reduce chemical usage, and prevent permit violations. The digital RS485 output ensures long‑distance data transmission (up to 1200 m) without signal degradation, supports multi‑sensor networking (daisy‑chain), and enables remote calibration and self‑diagnostics. Compared to conventional COD analyzers, this digital sensor eliminates the need for expensive reagents, hazardous waste disposal, and frequent maintenance, significantly reducing operational costs and environmental footprint, making it an essential tool for unattended, continuous water quality monitoring in both industrial and municipal applications. It is particularly suitable for applications where rapid trend detection and low maintenance are prioritized over laboratory‑grade absolute accuracy, such as early warning systems, process control in biological treatment, and pollutant load estimation. -
Digital RS485 Optical Nitrate Nitrogen Sensor NO3-N–CS6802CD
Digital Nitrite Nitrogen Sensor is an online analytical device for continuous measurement of nitrite‑nitrogen (NO₂⁻‑N) concentration in water and wastewater. It operates on the ion‑selective electrode (ISE) principle or an electrochemical method with a polymeric membrane, providing high selectivity and rapid response without the need for reagents or sample preparation. The sensor integrates a built‑in reference electrode and automatic temperature compensation (ATC) for accurate, drift‑free readings over a typical range of 0–10 mg/L. It directly outputs digital data via RS‑485 (Modbus RTU), enabling plug‑and‑play integration into SCADA or IoT platforms. Its durable, waterproof (IP68) housing and low‑maintenance design are suitable for continuous monitoring in aeration tanks, effluent channels, drinking water sources, and aquaculture systems. Nitrite is an intermediate product of nitrification and denitrification; excess levels are toxic to fish and indicate incomplete biological treatment. By delivering real‑time nitrite data, the sensor helps optimize aeration and carbon dosing, improve nitrogen removal efficiency, reduce energy and chemical costs, and ensure compliance with discharge limits (e.g., <1 mg/L for drinking water). Compared to colorimetric analyzers, this ISE‑based sensor requires no chemical reagents, no sample filtration, and has faster response, lower operational cost, and simpler maintenance. Its digital output supports remote calibration, self‑diagnostics, and unattended continuous water quality monitoring, making it an essential tool for wastewater treatment plants, environmental agencies, and aquaculture farms. The sensor can be directly submersed into tanks or channels, providing real‑time data without pumping or sample conditioning, thus ensuring rapid detection of process upsets and timely corrective actions.