Digital Ion Selective Sensor
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CS6721D Digital Nitrite Sensor
Easy to connect to PLC, DCS, industrial control computers, general purpose controllers,paperless recording instruments or touch screens and other third party devices.These Ion Selective Electrodes are designed to work with any modern pH/mVmeter,ISE/concentration meter, or suitable on-line instrumentation.Our Ion Selective Electrodes have several advantages over colorimetric, gravimetric, and -
CS6720D Digital Nitrate Ion Sensor
Digital Nitrate Ion Sensor is an online ion‑selective electrode (ISE) device for continuous measurement of nitrate‑nitrogen (NO₃⁻‑N) concentration in water. It operates on a PVC or polymer membrane ISE principle, combined with an integrated reference electrode and automatic temperature compensation (ATC), delivering accurate, drift‑free readings. The sensor directly outputs measurement data via RS‑485 (Modbus RTU), enabling plug‑and‑play integration into SCADA or IoT monitoring platforms. It features a durable, waterproof (IP68) body, typical range of 0–1000 mg/L, and low maintenance without reagent consumption. Common applications include drinking water safety monitoring (nitrate is regulated due to health risks), aquaculture (toxic to fish), agricultural runoff monitoring, and wastewater denitrification control. By providing real‑time nitrate data, the digital sensor helps optimize treatment processes, reduce chemical usage, ensure regulatory compliance, and protect public health and aquatic ecosystems. Compared to colorimetric analyzers, it requires no chemicals, no sample preparation, and has faster response and lower operating cost, making it essential for unattended, continuous water quality monitoring. -
CS6718D Digital Hardness Sensor (Ca Ion)
Digital Hardness Sensor is an online ion‑selective electrode (ISE) device for continuous measurement of calcium (Ca²⁺) and magnesium (Mg²⁺) ions in water, which together define total water hardness. It operates on a solid‑state or liquid‑membrane ISE principle combined with an integrated reference electrode and automatic temperature compensation (ATC), delivering accurate, drift‑free readings in real time. The sensor directly outputs measurement data via RS‑485 (Modbus RTU), enabling plug‑and‑play integration into SCADA or IoT monitoring platforms. It features a durable, waterproof (IP68) body, wide measurement range (e.g., 0–500 mg/L as CaCO₃), and low maintenance without reagents. Typical applications include boiler feedwater, cooling towers, industrial process water, reverse osmosis pretreatment, and drinking water hardness control. By providing continuous, reliable hardness data, the digital sensor helps prevent scaling, optimize chemical (e.g., anti‑scalant) dosing, protect pipes and equipment, and reduce operational and maintenance costs. Unlike traditional titration methods, it offers real‑time, 24/7 monitoring without manual sampling or laboratory analysis, making it essential for efficient industrial water management. -
CS6710D Digital Fluoride ion Sensor
Digital Fluoride Ion Sensor is an online analytical device designed for the continuous measurement of fluoride ion (F⁻) concentration in water. It operates on the ion‑selective electrode (ISE) principle using a solid‑state lanthanum fluoride (LaF₃) crystal membrane, which ensures excellent selectivity and stability in routine and industrial applications. The sensor includes an integrated reference electrode and automatic temperature compensation (ATC) to deliver accurate, drift‑free readings across a typical range of 0.01–2000 mg/L. It directly outputs measurement data via RS‑485 (Modbus RTU), allowing plug‑and‑play integration into SCADA or IoT monitoring platforms. The sensor features a durable, waterproof (IP68) body, long‑term stability without reagent consumption, and low maintenance, making it suitable for drinking water fluoridation control, wastewater treatment, and environmental monitoring. By providing real‑time, reliable fluoride data, the digital sensor helps optimize chemical dosing, ensure compliance with health and safety standards, and protect public health. -
CS6711D Digital Chloride ion Sensor
Digital Chloride Ion Sensor is an online analytical device designed for continuous, real-time measurement of chloride ion (Cl⁻) concentration in water and industrial solutions. It operates on the ion-selective electrode (ISE) principle, utilizing a solid-state or PVC membrane that responds selectively to chloride ions. The sensor features automatic temperature compensation (ATC) and a built-in reference electrode for drift-free, accurate readings. It directly outputs measurement data via RS-485 (Modbus RTU), enabling seamless integration into SCADA, IoT, or remote monitoring systems. Constructed with durable materials, it offers IP68 protection and low maintenance requirements. The sensor covers a typical measurement range of 0–50000 ppm (0–5%) and responds quickly. Its digital design eliminates signal interference, ensures plug-and-play connectivity, and supports remote calibration. Widely used applications include concrete corrosion monitoring, drinking water safety, industrial wastewater control, food processing, and road runoff testing. By providing continuous, reliable chloride data, it helps protect infrastructure, ensure public health, and reduce chemical dosing and operational risks in water treatment processes.
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CS6714D Digital Ammonium Nitrogen Ion Sensor
The Digital Ammonium Nitrogen Ion Sensor is an advanced online analytical device for continuous monitoring of ammonium (NH₄⁺-N) concentration in water and wastewater. It operates on the principle of ion-selective electrode (ISE) technology, combined with a reference electrode and automatic temperature compensation (ATC) for accurate, drift-free readings. The sensor directly outputs digital data via RS-485 (Modbus RTU), enabling easy integration into SCADA or IoT systems. It features a robust IP68 housing, minimal maintenance (no reagents required), and a built‑in cleaning mechanism to prevent biofouling. The sensor is widely used in municipal wastewater treatment, aquaculture, drinking water source monitoring, and environmental protection. It measures ammonium nitrogen typically in the range of 0–1000 mg/L with fast response and high stability. Compared to traditional colorimetric analyzers, this sensor offers lower operating costs and real-time data, making it an essential tool for efficient process control and regulatory compliance. -
Digital RS485 Optical Nitrate Nitrogen Sensor NO3-N
Principle
NO3 has an absorption at 210nm ultraviolet light. During operation, the sample flows through the slit, and the light emitted by the light source passes through the slit. Some of the light is absorbed by the moving sample in the slit, while the rest of the light passes through the sample and reaches the detector on the other side of the probe, where the nitrate concentration value is calculated. -
Digital Optical RS485 Nitrite Nitrogen Sensor NO2-N
Principle
NO2 has an absorption at 210nm ultraviolet light. During operation, the sample flows through the slit, and the light emitted by the light source passes through the slit. Some of the light is absorbed by the moving sample in the slit, while the rest of the light passes through the sample and reaches the detector on the other side of the probe, where the nitrate concentration value is calculated. -
CS6720SD Digital RS485 Nitrate Ion Selective Sensor NO3- Electrode Probe 4~20mA Output
Ion selective electrode is a kind of electrochemical sensor that uses membrane potential to measure the activity or concentration of ions in the solution. When it comes into contact with the solution containing the ions which are to be measured, it will generate contact with the sensor at the interface between its sensitive
membrane and the solution. Ion activity is directly related to membrane potential. Ion selective electrodes are also called membrane electrodes. This type of electrode has a special electrode membrane that selectively responds to specific ions. -
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 -
Calcium Ion Selective Electrode Water Quality Analysis CS6718S RS485 Digital Hardness
The calcium electrode is a PVC sensitive membrane calcium ion selective electrode with organic phosphorous salt as the active material, used to measure the concentration of Ca2+ ions in the solution.
Application of calcium ion: The calcium ion selective electrode method is an effective method to determine the calcium ion content in the sample. The calcium ion selective electrode is also often used in online instruments, such as industrial online calcium ion content monitoring, calcium ion selective electrode has the characteristics of simple measurement, fast and accurate response, and can be used with pH and ion meters and online calcium ion analyzers. It is also used in ion selective electrode detectors of electrolyte analyzers and flow injection analyzers. -
Digital Fluoride Ion Online ISE Probe for Wastewater Treatment Sensor CS6710AD
CS6710AD digital fluoride ion sensor uses a solid membrane ion selective electrode for testing fluoride ions floating in water, which is fast, simple, accurate and economical. The design adopts the principle of single-chip solid ion selective electrode, with high measurement accuracy. Double salt bridge design, longer service life.The patented fluoride ion probe, with an internal reference fluid at a pressure of at least 100KPa (1Bar), seeps extremely slowly from the microporous salt bridge. Such a reference system is very stable and the electrode life is longer than the ordinary. -
Water Online Digital RS485 Chloride Ion Selective Sensor for Water Monitoring CS6711AD
CS6711AD digital chloride ion sensor uses a solid membrane ion selective electrode for testing fluoride ions floating in water, which is fast, simple, accurate and economical.The design adopts the principle of single-chip solid ion selective electrode, with high measurement accuracy. Double salt bridge design, longer service life.The patented chloride ion probe, with an internal reference fluid at a pressure of at least 100KPa (1Bar), seeps extremely slowly from the microporous salt bridge. Such a reference system is very stable and the electrode life is longer than the ordinary. -
Online Ammonia Ammonium Ion-selective Electrodes Water Quality Monitoring RS485 4-20mA CS6714AD
Easy to connect to PLC, DCS, industrial control computers, general purpose controllers, paperless recording instruments or touch screens and other third party devices.The CS6714AD ammonium ion selective electrode is an effective method to measure the ammonium ion content in the sample. Ammonium ion selective electrodes are also often used in online instruments, such as industrial online ammonium ion content monitoring. Ammonium ion selective electrode has the advantages of simple measurement, fast and accurate response. It can be used with PH meter, ion meter and online ammonium ion analyzer, and also used in electrolyte analyzer, and ion selective electrode detector of flow injection analyzer. -
Industry Water Hardness Meter NH4 Ion Selective Electrode Sensor Probe RS485 CS6718AD
Easy to connect to PLC, DCS, industrial control computers, general purpose controllers, paperless recording instruments or touch screens and other third party devices.The CS6718AD water hardness ion selective electrode is an effective method to measure the calcium ion content in the sample. Calcium ion selective electrodes are also often used in online instruments, such as industrial online calcium ion
content monitoring. Calcium ion selective electrode has the advantages of simple measurement, fast and accurate response. It can be used with PH meter, ion meter and online calcium ion analyzer, and also used in electrolyte analyzer, and ion selective electrode detector of flow injection analyzer.