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Water Quality Testing Equipment
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Water Quality Testing Equipment

Water quality testing equipment is essential for accurately assessing the chemical, physical, and biological characteristics of water across a wide range of applications, including environmental monitoring, wastewater treatment, drinking water analysis, aquaculture, and industrial process control. This product category includes a comprehensive selection of instruments designed to meet professional standards for precision, reliability, and compliance with international testing protocols.


Our offerings cover a full spectrum of parameters critical to water quality evaluation. Multiparameter Water Quality Meters provide efficient, all-in-one testing solutions for simultaneous measurement of pH, conductivity, dissolved oxygen, turbidity, and more. For field-based applications, Portable Water Quality Analyzers deliver real-time results in compact, rugged formats.

Key single-parameter instruments include Dissolved Oxygen Meters, Turbidity Meters (Turbidimeters), and Chlorine Testers, each designed to meet specific regulatory and operational needs. COD and BOD Analyzers play a vital role in measuring organic pollution levels, while Heavy Metal Analyzers enable precise detection of toxic elements like lead, mercury, and arsenic in various water samples.

Colorimeters support rapid colorimetric analysis based on standard methods such as APHA platinum-cobalt, ideal for visual clarity and color contamination monitoring. Water Quality Test Kits offer simplified, cost-effective testing for routine checks in field and educational settings. For sample integrity and consistent results, Water Sampling Equipment ensures proper collection and handling protocols are followed. Additionally, Laboratory Water Quality Instruments provide high-precision bench-top solutions for research and advanced analysis in controlled environments.


Whether for regulatory compliance, environmental stewardship, or quality assurance, our water quality testing instruments are designed to deliver reliable data, streamline workflows, and support informed decision-making.


  • P9011 Benchtop Platinum-Cobalt Colorimeter | Accurate Water Chromaticity Analyzer
    Measuring Range: 0–50 Hazen, Pt-Co, PCU, mg Pt/L
    Minimum Readout: 1 chromaticity
    Accuracy & Repeatability: ±5% F.S, repeatability ≤3%
    Features: Desktop type, stable performance, maintenance-free, cost-effective
    Display & Measurement: Large-screen LCD digital display, direct chromaticity reading
    Calibration & Method: Photoelectric colorimetry, calibrated with platinum-cobalt standard solution
    Light Source & Durability: High-intensity, long-life light source, ready in 30 seconds
     
    Model: P9011
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  • P9012CB Handheld Portable Colorimeter | Accurate Water Chromaticity Analyzer
    Measuring Range: 0–50, 0–500 Hazen, Pt-Co, PCU, mg Pt/L
    Minimum Readout: 0.1 chromaticity
    Accuracy & Repeatability: ±5% F.S, repeatability ≤1.5%
    Features: Handheld, portable, AC & DC dual power, low voltage indication, automatic power off, can be equipped with micro-printer
    Display & Measurement: LCD backlit display, direct chromaticity reading, turbidity compensation system
    Calibration: Programmable 1–7 point automatic multi-point calibration
    Light Source & Durability: High-intensity 100,000-hour long-life light source, maintenance-free, built-in memory storage for last 20 measurements
     
    Model: P9012CB
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  • P9011B Portable Platinum-Cobalt Colorimeter | Accurate Water Chromaticity Analyzer
    Measuring Range: 0–50 Hazen, Pt-Co, PCU, mg Pt/L
    Minimum Readout: 1 chromaticity
    Accuracy & Repeatability: ±5% F.S, repeatability ≤3%
    Features: Portable design, AC/DC power, low voltage indication, automatic shutdown, stable and maintenance-free operation
    Display & Measurement: Large LCD digital display, high-precision optical path, direct reading using platinum-cobalt standard solution
    Light Source: High-intensity, long-life, works after 30 seconds warm-up
    Technology: Photoelectric colorimetry with multiple independent design patents
     
    Model: P9011B
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  • P9012AB Portable Colorimeter | High-Precision Hazen Pt-Co PCU Water Quality Analyzer
    Measuring Range: 0–50 / 0–500 Hazen, Pt-Co, PCU, mg Pt/L
    Minimum Readout: 0.1 chromaticity
    Accuracy & Repeatability: ±3% F.S, repeatability ≤1.5%
    Features: Portable microcomputer system, touch keyboard, LCD backlit display, turbidity compensation, self-diagnosis, direct chromaticity reading
    Calibration: Fast, programmable 1–7 point automatic multi-point calibration
    Data Storage: Built-in clock memory, stores latest 20 measurement sets, long-term storage and recall
    Power & Interface: AC 220V/50Hz or DC 7.5V/0.2A, RS232 interface, optional micro-printer
     
    Model: P9012AB
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  • P9012C Platinum Cobalt Colorimeter | High-Precision Hazen Pt-Co PCU Analyzer for Water and Industrial Applications
    Measuring Range: 0–50 / 0–500 Hazen, Pt-Co, PCU, mg Pt/L
    Minimum Readout: 0.1 degrees
    Accuracy & Repeatability: ±5% F.S, repeatability ≤1.5%
    Features: Microcomputer system, touch keyboard, LCD backlit display, direct chromaticity reading, turbidity compensation, self-diagnosis prompts
    Calibration: Fast, programmable 1–7 point automatic multi-point calibration
    Data Storage: Built-in clock memory, stores latest 20 measurement sets, long-term storage and recall
    Power & Interface: AC 220V ±10% 50Hz/5W, standard RS232 interface, printer-compatible
     
    Model: P9012C
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  • Benchtop Colorimeter P9012A | High-Precision Chromaticity Analyzer for Water and Industrial Applications
    Measuring Range: 0–50 / 0–500 NTU, chromaticity units Hazen, Pt-Co, PCU, mg Pt/L
    Minimum Readout: 0.1 NTU / chromaticity
    Accuracy & Repeatability: ±3% F.S, repeatability ≤1.5%
    Features: Microcomputer system, touch keyboard, LCD backlit display, direct chromaticity reading, turbidity compensation, self-diagnosis prompts
    Calibration: Programmable multi-point calibration (1–7 points) for high accuracy
    Data Storage: Built-in clock memory, stores latest 20 measurement sets, long-term storage and recall
    Power & Interface: AC 220V ±10% 50Hz/5W, standard RS232 interface, optional built-in printer
     
    Model: P9012A
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  • Benchtop Turbidity Meter PGZ Series | High-Precision Water Turbidity Analyzer for Laboratory and Industrial Use
    Measuring Principle: 90° scattered light for accurate turbidity analysis
    Measuring Range: 0–20 / 0–200 / 0–800 NTU depending on model
    Minimum Readout: 0.01–0.1 NTU (model dependent)
    Accuracy & Repeatability: ±6% F.S, repeatability ≤0.5%, zero drift ±0.5% F.S
    Features: High-intensity long-life light source, chromaticity compensation, large LCD display, reliable optical path, stable long-term operation
    Applications: Suitable for low, medium, and high turbidity water samples in power plants, waterworks, beverage and pharmaceutical industries, sewage treatment, environmental monitoring
    Additional: Easy operation, cost-effective design, fast warm-up within 30 seconds
     
    Model: PGZ-1、200、800
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  • High-Precision Benchtop Turbidity Meter | PGZ Series Water Turbidity Analyzer with RS232 Interface
    Measuring Principle: 90° scattered light, direct turbidity reading
    Measuring Range: 0–10 / 0–100 / 0–1000 / 0–4000 NTU depending on model
    Minimum Readout: 0.001–0.01 NTU (model dependent)
    Accuracy & Repeatability: ±6% F.S, repeatability ≤0.5%, zero drift ±0.5% F.S
    Features: Microcomputer control, LCD backlit display, automatic multi-point calibration, average measurement mode, data storage and query, automatic/manual range switching
    Connectivity: RS232 data communication interface, optional built-in or external printer
    Additional: Optional spectrum measurement unit, flow sampling device, continuous measurement capability
     
    Model: PGZ-2000、2000A、4000、4000A100
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  • Handheld Digital Turbidity Meter | Portable Water Turbidity Analyzer for On-Site and Laboratory Testing
    Measuring Principle: 90° scattered light, direct turbidity reading
    Measuring Range: 0–20 NTU / 0–200 NTU (model dependent)
    Minimum Readout: 0.01 NTU or 0.1 NTU (depending on model)
    Accuracy: ±8% (±2.5% F.S); Repeatability ≤1%; Zero drift ≤±1% F.S
    Power Supply: AC 220/110V or DC operation with 5×AA alkaline batteries
    Features: LCD display, low power consumption, automatic shutdown, AC/DC dual power supply
    Compact & Lightweight: 235×75×65 mm design for portable use
     
    Model: PGA - B Series
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  • PGZ Series Benchtop Turbidity Meter | High-Precision Water Turbidity Analyzer for Laboratory and Industrial Applications
    Measuring Principle: 90° scattered light, direct turbidity reading
    Measuring Range: 0–10 / 0–100 / 0–500 / 0–1000 NTU (depending on model)
    Minimum Readout: 0.001 NTU or 0.01 NTU (model dependent)
    Accuracy: ±6% (±2% F.S); Repeatability ≤0.5%; Zero drift ≤±0.5% F.S
    Calibration: Automatic 1–5 point calibration with data smoothing and nonlinear processing
    Features: LCD backlight display, microcomputer control, data storage & query, RS232 interface; “P” models include built-in printer
    Applications: Waterworks, wastewater treatment, food & beverage, pharmaceuticals, hospitals, and environmental monitoring
     
    Model: PGZ Series
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To Make The World Closer To The Truth
ZHEJIANG TOP INSTRUMENT CO.,LTD., as a subsidiary of TOP Cloud agri, is a high-tech enterprise specializing in the R&D, manufacturing, sales for laboratory equipments, and provision of comprehensive laboratory solutions.

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