Products
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CS3501C Conductivity Sensor Analyser
The electrode typically features two graphite elements (cells) with a defined surface area and spacing, housed within a durable, chemically resistant body. When immersed, an alternating current is applied to prevent polarization. The ions in the solution facilitate current flow between the electrodes, generating a signal proportional to the solution's conductivity. A built-in temperature sensor (e.g., Pt1000) is essential for automatic compensation, as conductivity is highly temperature-dependent. Modern versions often incorporate multiple cells (like four-electrode designs) to extend range and minimize fouling errors.
The primary advantage of graphite over platinum is its superior cost-effectiveness and robustness in harsh or fouling-prone environments, such as wastewater, cooling towers, or chemical processes where abrasion or coating is a concern. However, graphite may have limitations in very high-precision or ultra-pure water applications compared to advanced platinum cells. -
CS3701C EC & TDS Conductivity Sensor Probe with RS485 Output
graphite conductivity electrode is a core component in sensors designed for measuring the electrical conductivity of various liquids, particularly water-based solutions. As an alternative to traditional platinum electrodes, graphite models offer distinct advantages in specific applications due to their material properties. Conductivity, a key indicator of total dissolved ionic solids (TDS) and water purity, is critical for process control in industries ranging from pharmaceuticals and power generation to wastewater treatment and agriculture.
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. -
CS3540 Industrial Conductivity Sensor
Key advantages include excellent resistance to corrosion and coating, making it suitable for wastewater, aggressive chemicals, and high-solids slurries where platinum electrodes would rapidly degrade. Its rugged construction often allows for high-pressure and high-temperature operation. However, its primary limitation is a narrower measurement range compared to premium platinum cells, as graphite can polarize at very high conductivities.The graphite conductivity electrode is a robust and widely used sensor designed for measuring the electrical conductivity of aqueous solutions in demanding industrial, environmental, and process control applications. It offers a cost-effective and durable alternative to traditional platinum electrodes, particularly in media where fouling, abrasion, or chemical attack are concerns. When paired with a high-quality transmitter, the graphite conductivity electrode provides a reliable balance of performance and longevity for challenging on-line monitoring tasks, forming a critical component in modern water quality management. -
CS3601C Conductivity Sensor RS485 EC Probe
The graphite conductivity electrode is a robust and widely used sensor designed for measuring the electrical conductivity of aqueous solutions in demanding industrial, environmental, and process control applications. It offers a cost-effective and durable alternative to traditional platinum electrodes, particularly in media where fouling, abrasion, or chemical attack are concerns.
The electrode typically consists of two precisely spaced graphite elements (cells) encased within a chemically resistant body, such as PPS or epoxy. Graphite's inherent conductivity and porous structure provide a large effective surface area, ensuring stable signal generation. When an alternating current is applied, the ions in the solution complete the circuit between the electrodes; the measured conductance is directly proportional to the ion concentration. A built-in temperature sensor (usually a Pt1000 RTD) is essential for automatic temperature compensation, correcting readings to the standard reference of 25°C.
These electrodes are integral to systems monitoring water purity (e.g., RO permeate, ultrapure water), controlling chemical dosing in wastewater treatment, and managing concentration in industrial processes like cooling towers or food & beverage production. When paired with a high-quality transmitter, the graphite conductivity electrode provides a reliable balance of performance and longevity for challenging on-line monitoring tasks, forming a critical component in modern water quality management. -
CS3740 Industrial Conductivity Sensor Multiparameter Water Quality Sensor
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.
Twinno's 4-electrode sensor has been proven to operate over a wide range of conductivity values. It is made of PEEK and is suitable for simple PG13/5 process connections.The electrical interface is VARIOPIN, which is ideal for this process.
Feature highlights:This RS485 2-in-1 industrial submersible sensor measures pH, EC, and temperature with high accuracy (±0.03pH; ±1.5% FS) and resolution (0.01pH; 0.1µS/cm). It operates in temperatures of 0-60°C, humidity up to 100% RH, and features an IP68 waterproof rating, making it ideal for water quality testing in harsh environments. -
CS6602CD Digital COD Sensor
Introduction:
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.
Testing principle:
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. -
T9040 Water Quality Multi-parameter online monitoring system
Water Quality Multi-parameter Online Monitoring System is an integrated, automated platform designed for the continuous, real-time measurement of multiple critical water quality parameters at a single point or across a network. It represents a fundamental shift from manual, laboratory-based sampling to proactive, data-driven water management across drinking water safety, wastewater treatment, environmental protection, and industrial process control.
The core of the system is a robust sensor array or a centralized analyzer that hosts various detection modules. Key measured parameters typically include the fundamental five (pH, Dissolved Oxygen (DO), Conductivity, Turbidity, and Temperature), often extended with Nutrient Sensors (Ammonium, Nitrate, Phosphate), Organic Matter Indicators (UV254, COD, TOC), and Toxic Ion Sensors (e.g., Cyanide, Fluoride). These sensors are housed in durable, submersible probes or flow-through cells, connected to a central data logger/transmitter.
The system's intelligence lies in its automation and connectivity. It performs automatic calibration, cleaning, and data validation, ensuring long-term reliability with minimal maintenance. Data is transmitted in real-time via industrial protocols (4-20mA, Modbus, Ethernet) to central Supervisory Control and Data Acquisition (SCADA) systems or cloud platforms. This enables instant alarm triggering for parameter exceedances, trend analysis for predictive maintenance, and seamless integration with process control loops for automated chemical dosing or aeration control.
By providing a comprehensive, real-time water quality profile, these systems are indispensable for ensuring regulatory compliance, optimizing treatment processes, protecting aquatic ecosystems, and safeguarding public health. They transform raw data into actionable intelligence, forming the backbone of modern smart water networks. -
Model W8500G Online Turbidity Meter
Typical Applications
Turbidity monitoring of effluent water in waterworks.Water quality monitoring of municipal pipe networks.Industrial process water quality monitoring, including circulating cooling water, effluent from activated carbon filters, effluent from membrane filters, etc.
Instrument Features：
●Large-screen LCD display
●Intelligent menu operation
●History date logging
●Manual or automatic temperature compensation
●Three groups of relay control switches
●High-limit, low-limit and hysteresis contro
●Multiple output modes: 4-20mA & RS485
●Simultaneous display of turbidity value, temperature and current value on the same interface
●Password protection function to prevent misoperation by unauthorized personnel -
Digital conductivity sensor series CS3742ZD
CS3740ZD Digital Conductivity Sensor: Conductivity sensor technology is an important field of engineering technology research, suitable for high-conductivity applications in semiconductor, electric power, water and pharmaceutical industries. These sensors are compact and easy to use. Determining the specific conductivity of an aqueous solution is more and more important for determining the impurities in the water. The measurement accuracy is greatly affected by factors such as temperature changes, surface polarization of contact electrodes, and cable capacitance. -
Conductivity/TDS/Salinity Meter/Tester-CON30
The CON30 is an economically priced, reliable EC/TDS/Salinity meter that is ideal for testing applications such as hydroponics & gardening, pools & spas, aquariums & reef tanks, water ionizers, drinking water and more.conductivity tester is an essential instrument designed to measure the electrical conductivity of aqueous solutions or liquids, which directly reflects the concentration of total dissolved ions and salts. As a key indicator of water purity and chemical composition, conductivity is widely used in environmental monitoring, industrial process control, water treatment, agriculture, aquaculture, laboratory research, and beverage production. From ensuring ultrapure water quality in pharmaceutical manufacturing to monitoring salinity in hydroponic systems, conductivity testing provides critical insights into solution properties and contamination levels. -
On-line Acid, Alkali and Salt Concentration Meter Electromagnetic Conductivity Transmitter T6038
Industrial on-line water quality monitoring and control instrument with microprocessor. The instrument is widely used in thermal power, chemical industry, steel pickling and other industries, such as regeneration of ion exchange resin in power plant, chemical industry process, etc., to continuously detect and control the concentration of chemical acid or alkali in aqueous solution. -
Residual Chlorine Meter Sensor Chlorine Analyzer T6550
Residual Chlorine Meter is a precision instrument designed for measuring the concentration of residual chlorine in water. Residual chlorine, which includes free chlorine (HOCI/OCl⁻) and combined chlorine (chloramines), is a vital indicator of water disinfection efficacy. It plays a critical role in ensuring public health safety across drinking water distribution systems, swimming pools, industrial cooling water, and wastewater disinfection processes. Maintaining appropriate residual chlorine levels helps prevent pathogen regrowth while avoiding excessive chlorine that may lead to harmful disinfection by-products (DBPs) or corrosion.
The meter primarily employs electrochemical or colorimetric methods for detection. Amperometric sensors, widely used in online and portable designs, apply a constant voltage to electrodes, generating a current proportional to chlorine concentration through reduction reactions. Colorimetric methods, such as the DPD (N,N-diethyl-p-phenylenediamine) reagent-based approach, produce a pink color when reacting with chlorine; the intensity is measured photometrically to determine concentration. Portable models often feature user-friendly interfaces, automatic temperature compensation, and calibration reminders to ensure accuracy in field applications. -
COD Analyzer with Real-Time Monitoring Customized OEM Support for Chemical Industry SC6000UVCOD
The Online COD Analyzer is a state-of-the-art instrument designed for continuous, real-time measurement of Chemical Oxygen Demand(COD) in water. Utilizing advanced UV oxidation technology, this analyzer delivers precise and reliable data to optimizewastewater treatment, ensure regulatory compliance, and reduce operational costs. Ideal for harsh industrial environments, it features rugged construction, minimal maintenance, and seamless integration with control systems.
✅ High Precision & Reliability
Dual-wavelength UV detection compensates for turbidity and color interference.
Automatic temperature and pressure correction for lab-grade accuracy.
✅ Low Maintenance & Cost-Effective
Self-cleaning system prevents clogging in high-solids wastewater.
Reagent-free operation reduces consumable costs by 60% compared to traditional methods.
✅ Smart Connectivity & Alarms
Real-time data transmission to SCADA, PLC, or cloud platforms (IoT-ready).
Configurable alarms for COD threshold breaches (e.g., >100 mg/L).
✅ Industrial Durability
Corrosion-resistant design for acidic/alkaline environments (pH 2-12). -
Online Ion Selective Analyzer T6010
Industrial online Ion meter is an online water quality monitoring and control instrument with microprocessor. It can be equipped with Ion selective sensor of Fluoride, Chloride, Ca2+, K+,
NO3-, NO2-, NH4+, etc. online fluorine Ion analyzer is a new online intelligent analog meter independently developed and manufactured by our company. Complete functions, stable performance, easy operation, low power consumption, safety and reliability are the outstanding advantages of this instrument.
This instrument uses matching analog ion electrodes, which can be widely used in industrial occasions such as thermal power generation, chemical industry, metallurgy, environmental protection, pharmacy, biochemistry, food and tap water. -
DO300 Portable Dissolved Oxygen Meter
Portable Dissolved Oxygen (DO) Meter is an essential handheld instrument designed for on-site measurement of oxygen concentration in aqueous environments. DO levels serve as a critical indicator of water quality, reflecting ecological health, pollution status, and the efficiency of aerobic processes in natural and engineered systems. This device is widely used in environmental monitoring, aquaculture, wastewater treatment, hydroponics, and scientific research, where real-time, accurate DO data supports timely decision-making and process optimization.
The meter typically employs an electrochemical sensing principle, featuring a Clark-type polarographic or galvanic sensor with an oxygen-permeable membrane. Oxygen diffusing through the membrane undergoes reduction at the cathode, generating an electrical current proportional to the DO concentration. Advanced models integrate automatic temperature, salinity, and barometric pressure compensation to ensure accuracy across varying field conditions. The instrument is built with a rugged, waterproof housing, an intuitive interface with backlit display, and long-lasting battery power, making it suitable for demanding outdoor use.