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    Water Quality ORP Sensor, -1500mV~+1500mV

    ● -1500mV~+1500mV ● 1 mV resolution ● RS485/ 4-20mA ● Platinum electrode method
    $650.79

    Wired Water Leakage Sensor, DC 5V/7-36V, RS485

    ● Power supply 5V/12V/24V/7-36V DC ● Relay output, NC/NO optional ● Waterproof level IP68 ● Support RS485 communication
    $74.79

    Electrical Conductivity Sensor for Sewage, 0~130℃

    ● Measurement range 0~2000μs/cm ● Temperature range 0~130℃ ● Temperature compensation NTC10K ● Power supply 220V
    $696.99

    High Temperature Sterilizable pH Probe Electrode

    ● pH range 0-14, accuracy ±0.02 pH ● Temperature range 0~130℃ ● Upper thread type PG 13.5 ● Glass shell, porous ceramic core salt bridge
    $536.84

    Online Turbidity Sensor, 0~200/1000/3000 NTU

    ● Output signal RS485, MODBUS/RTU protocol ● Measuring range 0~200/1000/3000 NTU ● Resolution 0.1 NTU, 0.1℃ ● Operating conditions: 0~50℃, <0.2MPa
    $932.92

    Remote Water Leak Sensor, Wall Mounted, Relay/RS485

    ● Relay/RS485 output optional ● Power supply DC 10-30V ● Wall-mounted installation method ● Detection distance up to 2000m
    $94.32

    Water Quality Turbidity Sensor, 0~20/100/1000 NTU

    ● 0~20/100/1000 NTU ● IP68 protection rating ● RS485 (Modbus/RTU) ● Scattering light method
    $1,016.59

    Analog Electrical Conductivity Sensor, 4-20mA/0-5V/0-10V

    ● Electrode constant K=0.01/0.1/1/10 ● Output signal 4-20mA/0-5V/0-10V ● Power supply DC 10~30V ● Power consumption 0.4W
    $199.97

    Digital pH Electrode for Water, RS485 Output

    ● Measuring range 0-14pH, accuracy 0.02pH ● Temperature range 0~60℃ ● RS485 output, standard MODBUS-RTU protocol ● Power supply 6-30VDC, IP68
    $261.46

    Industrial High Temperature Turbidity Sensor, 0~3000 NTU

    ● Output signal RS485, MODBUS/RTU protocol ● Measuring range 0~3000 NTU ● Resolution 0.1 NTU, 0.1℃ ● Operating conditions: 0~100℃, <0.5MPa
    $2,779.68

    Photoelectric Leakage Detection Sensor, Relay/RS485

    ● Relay/RS485 output optional ● Power supply DC 10-30V ● Operating temperature -20℃~+60℃ ● Can detect alcohol, tap water, purified water, and gasoline
    $82.85

    Water Quality Dissolved Oxygen Sensor, 0~20mg/L, RS485

    ● 0~20mg/L (0 to 200% saturation, 25°C) ● 0.01 mg/L, 0.1°C resolution ● RS-485 (Modbus RTU) ● Fluorescence method
    $301.59

    Conductivity Probe, 0~2000μS/cm

    ● Electrode constant k=1.0 ● Range 0μs/cm~2000μs/cm ● Power supply AC 90V~260V ● Thermistor NTC10K
    $319.96

    Flat pH Electrode for Water Quality Monitoring

    ● Measuring range 0-14 pH ● Temperature range 5-80℃ ● Standard interface NPT 3/4, easy installation ● Flat design, anti-fouling
    $167.46

    Water Leak Sensor Alarm Module, Relay Output

    ● 9-15V DC power supply ● Wall-mounted installation ● Maximum output power 220AC/2A ● Dimension 82mm*50mm*32mm
    $82.03

    Water Quality Ammonium Nitrogen Sensor, 0~10/100/1000mg/L

    ● 0~10/ 0~100/ 0~1000mg/L ● 0.01/ 0.1 mg/L,0. 1°C resolution ● RS485 (Modbus RTU)/ 4-20mA ● Ion-selective electrode method
    $555.89

    Sanitary Conductivity Sensor, PFA, 1~2000mS/cm

    ● Measuring range 1ms/cm ~ 2000ms/cm ● Flange/Sleeve/Thread/Clamp Installation ● Housing material PFA ● Power supply 12 VDC ~30VDC
    $2,959.69

    Smart Water Leak Sensor, 12V/24V/220V, RS485 Output

    ● Power supply 12-24VDC/24VAC/220VAC optional ● Operating temperature -10~65℃, humidity< 95% ● DIN 35mm DIN rail housing ● MODBUS-RTU communication
    $296.38

    Water Quality Oil in Water Sensor, 0~40 mg/L

    ● 0~40 mg/L ● 0.01 mg/L resolution ● RS485, 4-20mA ● Fluorescence method
    $1,825.39

    Water Quality pH Sensor, 0~14pH, RS485 (Modbus RTU)

    ● 0~14pH ● 0.01 resolution ● RS485 (Modbus RTU) ● Glass electrode method
    $239.96

    In recent years, sensors have been rapidly developed and applied in water pollution monitoring. They are key tools for real-time monitoring of the physical, chemical and biological properties of water. They can accurately detect parameters such as pH, conductivity, turbidity, salinity and water leakage, and are widely used in industrial wastewater treatment, environmental protection, aquaculture, municipal water supply monitoring and smart building water management.

    Main Sensor Types

    • Conductivity Sensor: Conductivity sensors detect the conductivity of water, which correlates with the total ion concentration. Commonly used in pollution monitoring, industrial effluent detection, and hydroponics, these sensors provide early warnings of contamination and mineral content variations. Models with temperature compensation and rugged design ensure electrical accuracy and durability in the field.

    • Salinity Sensor: Salinity sensors measure the salt concentration in water, particularly useful in marine aquaculture, desalination systems, and estuarine studies. They are typically derived from conductivity measurements, with temperature compensation for accurate readings in varying environments.

    • pH Sensor / pH Electrode: pH sensors measure the hydrogen ion concentration in water and are essential for determining acidity or alkalinity. Widely used in wastewater treatment, aquaculture, and industrial processes, pH sensors are available in gel-filled, glass, and solid-state types with analog or digital outputs. They offer stable, long-term measurements in both freshwater and saltwater environments.

    • Turbidity Sensor: Turbidity sensors assess the optical clarity of water by measuring light scattering caused by suspended solids. These sensors are vital in drinking water treatment, river monitoring, and environmental compliance. They use infrared or laser technology for high-precision, low-maintenance monitoring.

    • Water Quality Sensor: Multi-parameter water quality sensors combine measurements like pH, turbidity, DO (dissolved oxygen), conductivity, and temperature into one module. Suitable for remote stations, water tanks, and environmental monitoring systems, they simplify deployment and reduce integration complexity.

    • Water Leakage Sensor: Water leakage sensors detect the presence of water in unintended areas, such as under floors, near pipelines, or inside equipment enclosures. Using resistive or capacitive sensing, these sensors trigger alarms or control systems, preventing property damage and system failures.

    Applications of Water Quality Sensors

    • Environmental Monitoring: Used to track water pollution in rivers, lakes, groundwater, and oceans.

    • Drinking Water Treatment: Ensures safe and clean water in municipal supply systems.

    • Wastewater Treatment: Monitors key parameters to optimize treatment processes and meet discharge standards.

    • Industrial Use: Controls water quality in processes like electroplating, paper making, and chemical production.

    • Agriculture and Aquaculture: Maintains optimal water conditions for crops and fish farming.

    • Smart Cities and IoT: Integrates with cloud and wireless systems for remote and automated monitoring.

    Wastewater treatment

    Wastewater Treatment

    Agriculture

    Agriculture

    Smart city

    Smart City

    Water quality sensors are indispensable in achieving intelligent, safe, and efficient water management. Whether you are working on environmental protection, agricultural water conservation, or industrial discharge control, Such Online Shop offers robust sensor products and expert consultation services to empower your solution.