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High-Accuracy RS485 Ion Selective Sensor for Water Quality - Eco-Friendly, Reliable Data | China Suppliers & Factory

The Ion Selective Sensor is an eco-friendly solution designed to meet advanced measurement needs for water quality monitoring across various environments. This sensor is manufactured in China by trusted suppliers and features an isolated power supply, ensuring stable performance with an accuracy of ±5%. Its anti-interference capabilities and customizable calibration through forward/reverse curves make it ideal for detecting multiple ions such as NH4+, NO3-, K+, and Ca²+. Built from durable polymer plastic, this compact sensor (31mm x 200mm) includes an RS-485 MODBUS output for seamless integration into industrial, municipal, or environmental systems. Whether it's surface water, sewage, or potable water testing, this reliable sensor minimizes maintenance due to its easy-to-clean, pollution-resistant structure. Choose our state-of-the-art Ion Selective Sensor from a leading factory for top-notch water quality monitoring solutions
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    Product Details

    Product Parameters
    Product Name Ion Selective Sensor
    Measurement Method Ionic electrode
    Range 0 ~ 1000 mg/L
    Accuracy ±5% F.S.
    Power 9–24 VDC (Recommend 12 VDC)
    Material Polymer Plastic
    Size 31mm × 200mm
    Working Temperature 0–50 ℃
    Cable Length 5m, can be extended according to user need
    Sensor Interface Supports RS-485, MODBUS protocol
    Product Features
    • ♻️
      ① Eco-Friendly & Pollution-Resistant Design
      Constructed from robust polymer plastic, the sensor resists chemical corrosion and physical wear, making it ideal for harsh industrial or outdoor environments.
    • ⚙️
      ② Flexible Calibration Solutions
      Supports custom standard liquid calibration with forward and reverse curve adjustments to meet diverse measurement scenarios.
    • 🔬
      ③ Multi-Ion Detection Capability
      Compatible with critical ions like NH4+, NO3-, K+, and Ca²+, enabling tailored applications in wastewater treatment, agriculture, and environmental monitoring.
    • ⚡
      ④ Isolated Power Supply & Anti-Interference
      Ensures stable data transmission and minimal noise, even in electromagnetically noisy environments.
    • 🔧
      ⑤ Easy Integration & Maintenance
      Compact design and direct installation compatibility simplify deployment into existing water quality monitoring systems.
    • 🌍
      ⑥ Wide Application Scope
      Performs reliably in surface water, sewage, drinking water, and industrial effluent testing with minimal maintenance.
    Application
    • 🏭 1. Municipal Wastewater Treatment
      Monitor ion concentrations (e.g., ammonium, nitrate) to optimize treatment processes and comply with discharge standards.
    • 🌿 2. Environmental Protection
      Track pollutants in rivers, lakes, and reservoirs to assess ecological health and pollution sources.
    • 🌾 3. Agricultural Water Management
      Measure nutrient ions (K+, Ca²+) in irrigation systems to enhance crop yield and soil quality.
    • 🏗️ 4. Industrial Process Control
      Ensure precise ion levels in chemical manufacturing, food production, and pharmaceutical processes.
    • 💧 5. Drinking Water Safety
      Detect harmful ions in potable water sources to safeguard public health.
    • 🐟 6. Aquaculture Systems
      Maintain optimal ion balance for aquatic species health and growth.
    application
    Digital RS485 Water Quality Sensors Technical Data
    Parameter Model Range Accuracy
    DO sensor LMS-DO10B 0–20 mg/L, 0–60 ℃ ±0.1–0.3 mg/L
    DO sensor LMS-DO10C 0–20 mg/L, 0–60 ℃ ±0.3 mg/L
    Trace DO sensor LMS-TDO100 0–2000 ppb, 0–50 ℃ ±1 ppb
    PH sensor LMS-PH100 0–14 pH ±0.02 pH
    ORP sensor LMS-ORP100 ±1000.0 mV ±0.2 mV
    EC/TDS sensor LMS-TDS102 CT: 0–9999 uS/cm; 0–100 mS/cm;
    TDS: 0–10000 ppm    		 ±2.5% FS
    Salinity/EC/TDS sensor LMS-SAL104 Conductivity: 0.1–500 mS/cm
    TDS: 0–60000 ppm
    Salinity: 0–500.00 ppt    		 ±1.5% FS
    COD sensor LMS-COD100 COD: 0.1–1500 mg/L
    TOC: 0.1–750 mg/L
    BOD: 0.1–900 mg/L
    Turbidity: 0.1–4000 NTU
    Temperature: 0–50 ℃    		 ±5% equiv. KHP
    Temperature: ±0.5 ℃
    TSS sensor LMS-TSS100 0–50000 mg/L / 0–120000 mg/L ±10% FS or 10 mg/L
    Turbidity sensor LMS-TUR10L 0–100 NTU ±10% FS or 0.3 NTU
    Turbidity sensor LMS-TUR10H 0–3000 NTU ±10% FS or 0.3 NTU
    CO2 sensor LMS-CO2100 2000 PPM / 10000 PPM / 50000 PPM ±5% FS
    Ammonia Nitrogen sensor LMS-NH4100 0–1000 mg/L ±5% FS
    Ion Selective sensor LMS-ION100 0–1000 mg/L ±5% FS
    Oil in Water sensor LMS-OIL100 0–50 mg/L; 0–5 mg/L ±3% FS
    Chlorophyll sensor LMS-CHL100 0–500 ug/L ±3% FS
    Blue-Green Algae sensor LMS-BGA100 0–2,000,000 cells/ml ±3% FS
    Residual Chlorine sensor LMS-HCLO100 0–20.00 ppm ±5% FS
    Marine Current sensor LMS-Current100 Temperature: -3 ℃ – 45 ℃
    Velocity of flow: 0–500 cm/s
    Flow direction: 0–359.9°    		 ±0.05 ℃
    ±1 cm/s or ±2%
    ±2°
    more products
    Frequently Asked Questions (FAQ)
    Q What ions can the Ion Selective Sensor (LMS-ION100) detect?
    A The LMS-ION100 Ion Selective Sensor is compatible with a range of critical ions including ammonium (NH4+), nitrate (NO3-), potassium (K+), and calcium (Ca²+), making it suitable for diverse water quality monitoring applications.
    Q What is the measurement range and accuracy of the Ion Selective Sensor?
    A The sensor measures ion concentrations from 0 to 1000 mg/L with an accuracy of ±5% F.S., providing reliable results across a wide concentration range.
    Q What communication protocol does the Ion Selective Sensor support?
    A The sensor supports RS-485 interface with MODBUS protocol, making it easy to integrate with PLCs, data loggers, and existing water quality monitoring systems.
    Q Can the cable length be customized for the Ion Selective Sensor?
    A Yes. The standard cable length is 5 meters, but it can be extended according to user requirements, offering flexibility for various installation environments.
    Q Is the Ion Selective Sensor suitable for outdoor or industrial environments?
    A Yes. The sensor is constructed from robust polymer plastic that resists chemical corrosion and physical wear. It operates in temperatures from 0–50 ℃ and features an isolated power supply for anti-interference performance in electromagnetically noisy environments.
    Q How do I calibrate the Ion Selective Sensor?
    A The sensor supports custom standard liquid calibration with both forward and reverse curve adjustments, allowing users to tailor calibration to their specific measurement scenarios and ion types.

    Product Parameters
    Product Name Ion Selective Sensor
    Measurement method Ionic electrode
    Range 0 ~ 1000 mg/L
    Accuracy ±5%F.S.
    Power 9-24VDC（Recommend 12 VDC）
    Material Polymer Plastic
    Size 31mm × 200mm
    Working Temperature 0–50℃
    Cable length 5m, can be extended according to user need
    Sensor Interface Supports RS-485, MODBUS protocol
    Product Features
    ① Eco-Friendly & Pollution-Resistant Design

    Constructed from robust polymer plastic, the sensor resists chemical corrosion and physical wear, making it ideal for harsh industrial or outdoor environments.

    ② Flexible Calibration Solutions

    Supports custom standard liquid calibration with forward and reverse curve adjustments to meet diverse measurement scenarios.

    ③ Multi-Ion Detection Capability

    Compatible with critical ions like NH4+, NO3-, K+, and Ca²+, enabling tailored applications in wastewater treatment, agriculture, and environmental monitoring.

    ④ Isolated Power Supply & Anti-Interference

    Ensures stable data transmission and minimal noise, even in electromagnetically noisy environments.

    ⑤ Easy Integration & Maintenance

    Compact design and direct installation compatibility simplify deployment into existing water quality monitoring systems.

    ⑥ Wide Application Scope

    Performs reliably in surface water, sewage, drinking water, and industrial effluent testing with minimal maintenance.

    Application
    🏭
    1. Municipal Wastewater Treatment

    Monitor ion concentrations (e.g., ammonium, nitrate) to optimize treatment processes and comply with discharge standards.

    🌿
    2. Environmental Protection

    Track pollutants in rivers, lakes, and reservoirs to assess ecological health and pollution sources.

    🌾
    3. Agricultural Water Management

    Measure nutrient ions (K+, Ca²+) in irrigation systems to enhance crop yield and soil quality.

    ⚙️
    4. Industrial Process Control

    Ensure precise ion levels in chemical manufacturing, food production, and pharmaceutical processes.

    💧
    5. Drinking Water Safety

    Detect harmful ions in potable water sources to safeguard public health.

    🐟
    6. Aquaculture Systems

    Maintain optimal ion balance for aquatic species health and growth.

    application
    Digital RS485 Water Quality Sensors Technical Data
    Parameter Model Range Accuracy
    DO sensor LMS-DO10B 0-20mg/L, 0-60℃ ±0.1-0.3mg/L
    DO sensor LMS-DO10C 0-20mg/L, 0-60℃ ±0.3mg/L
    Trace DO sensor LMS-TDO100 0-2000ppb, 0-50℃ ±1ppb
    PH sensor LMS-PH100 0-14pH ±0.02pH
    ORP sensor LMS-ORP100 ±1000.0 mV ±0.2 mV
    EC/TDS sensor LMS-TDS102 CT: 0-9999uS/cm; 0-100mS/cm;
    TDS: 0-10000ppm    		 ±2.5%FS
    Salinity/EC/TDS sensor LMS-SAL104 Conductivity: 0.1-500 mS/cm
    TDS: 0-60000ppm
    Salinity: 0-500.00ppt    		 ±1.5%FS
    COD sensor LMS-COD100 COD: 0.1-1500mg/L
    TOC: 0.1-750mg/L
    BOD: 0.1-900mg/L
    Turbidity: 0.1-4000NTU
    Temperature: 0-50℃    		 ±5% equiv.KHP
    Temperature: ±0.5℃
    TSS sensor LMS-TSS100 0-50000mg/L / 0-120000mg/L ±10%FS or 10 mg/L
    Turbidity sensor LMS-TUR10L 0-100NTU ±10%FS or 0.3 NTU
    Turbidity sensor LMS-TUR10H 0-3000NTU ±10%FS or 0.3 NTU
    CO2 sensor LMS-CO2100 2000PPM / 10000PPM / 50000PPM ±5%FS
    Ammonia Nitrogen sensor LMS-NH4100 0-1000 mg/L ±5%FS
    Ion Selective sensor LMS-ION100 0-1000 mg/L ±5%FS
    Oil in Water sensor LMS-OIL100 0-50 mg/L; 0-5 mg/L ±3%FS
    Chlorophyll sensor LMS-CHL100 0-500ug/L ±3%FS
    Blue-Green Algae sensor LMS-BGA100 0-2,000,000 cells/ml ±3%FS
    Residual Chlorine sensor LMS-HCLO100 0-20.00 ppm ±5%FS
    Marine Current sensor LMS-Current100 Temperature: -3℃ – 45℃
    Velocity of flow: 0-500 cm/s
    Flow direction: 0-359.9°    		 ±0.05℃
    ±1 cm/s or ±2%
    ±2°
    more products
    Frequently Asked Questions (FAQ)
    Q What ions can the Ion Selective Sensor (LMS-ION100) detect?
    The LMS-ION100 Ion Selective Sensor is compatible with multiple critical ions including ammonium (NH4+), nitrate (NO3-), potassium (K+), and calcium (Ca²+). This makes it suitable for a wide range of applications such as wastewater treatment, agricultural monitoring, and environmental analysis.
    Q What is the measurement range and accuracy of the Ion Selective Sensor?
    The Ion Selective Sensor has a measurement range of 0–1000 mg/L with an accuracy of ±5% F.S. (Full Scale). It operates reliably across a working temperature range of 0–50℃, making it suitable for both indoor and outdoor deployments.
    Q What communication protocol does the sensor support?
    The sensor supports RS-485 interface with MODBUS protocol, ensuring seamless integration with most industrial monitoring systems, PLCs, data loggers, and SCADA platforms. The cable length is 5 meters standard and can be extended based on user requirements.
    Q How do I calibrate the Ion Selective Sensor?
    The sensor supports flexible calibration using custom standard liquid solutions. It allows both forward and reverse curve adjustments to accommodate diverse measurement environments and ensure accurate readings across different water matrices.
    Q Is the sensor suitable for outdoor or harsh industrial environments?
    Yes. The sensor housing is constructed from robust polymer plastic, which provides excellent resistance to chemical corrosion and physical wear. Combined with an isolated power supply design for anti-interference, it performs reliably in electromagnetically noisy or chemically aggressive environments.
    Q Can the Ion Selective Sensor be used alongside other water quality sensors?
    Absolutely. The LMS-ION100 is part of a comprehensive range of digital RS485 water quality sensors that includes DO, pH, ORP, EC/TDS, COD, turbidity, chlorophyll, and more. All sensors use standardized RS-485 / MODBUS communication, making it easy to build a multi-parameter water quality monitoring system.

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