Liquid Analysis

Digital pH Meters

Engineered for High-Precision Digital Water Quality Monitoring

Instrava Digital pH Meters integrate full-digital electrode detection technology with high-resolution measurement capability to deliver stable, accurate, and repeatable water quality analysis.

With 0.001 pH resolution, automatic temperature compensation, 3.5-inch color touch display, and 500,000-record storage capacity, the instrument is designed for professional environmental monitoring, industrial process verification, and laboratory-grade field measurement.

Equipped with IP68-rated digital electrode protection and a waterproof portable case, the system ensures reliable operation across demanding industrial and outdoor environments.

For applications where data accuracy and long-term stability are critical, Instrava provides engineered measurement confidence.

  Liquid Analysis Description  

Digital pH Meters Applicable Scenarios

Instrava Digital pH Meters are suitable for:

  • Industrial wastewater monitoring

  • Municipal water treatment verification

  • Environmental field inspection

  • Surface water quality analysis

  • Aquaculture water management

  • Laboratory and research testing

  • Emergency mobile water testing

The system supports both portable deployment and structured monitoring tasks requiring large-scale data storage.

Portable pH meter, displaying the main menu and function buttons on the screen.
Portable pH meter showcasing its functional interfaces, including electrode interface and USB port.

Digital pH Meters Engineering Advantages

Full Digital Electrode Technology

  • High-precision full-digital pH electrode

  • Integrated automatic temperature compensation

  • Enhanced signal stability and noise resistance

Digital electrode architecture reduces analog signal interference and improves long-distance measurement reliability.

Ultra-Fine Measurement Resolution

  • Measurement range: 0 – 14 pH

  • Accuracy: ±0.1 pH

  • Resolution: 0.001 pH

High-resolution display enables more detailed observation of pH variation trends.

Intelligent Temperature Compensation

  • Working temperature range: 0 – 65°C

  • Automatic temperature compensation

Ensures consistent and reliable measurement across varying environmental conditions.

Large-Capacity Data Logging

  • Storage capacity: 500,000 records

  • Real-time data viewing

  • USB interface for data export

Designed for long-term monitoring projects requiring historical data traceability.

Industrial-Grade Protection

  • Electrode protection level: IP68

  • Waterproof and dustproof design

  • Portable waterproof carrying case included

Stable performance under humid, wet, or dusty industrial environments.

Professional User Interface

  • 3.5-inch color LCD touch screen

  • Clear data visualization

  • Intuitive operational workflow

Enhances field usability and measurement efficiency.

Flexible Power Supply

  • Built-in high-capacity lithium battery

  • Multiple power supply modes supported

Ensures uninterrupted operation during long-term field deployment.

  Liquid Analysis Parameter  

Digital pH Meters Technical Specifications

Measurement Performance

ParameterSpecification
Measurement ParameterpH
Measurement Range0 – 14 pH
Accuracy±0.1 pH
Resolution0.001 pH
Working Temperature0 – 65°C

System Configuration

ParameterSpecification
Electrode TypeHigh-precision full digital electrode
Display3.5-inch color LCD touch screen
Electrode Cable Length3 m / 5 m (customizable)
Data Storage500,000 records
Data InterfaceUSB
BatteryBuilt-in high-capacity lithium battery
Protection RatingIP68 (electrode)
Operating Environment0 – 50°C, 20 – 80% RH
Dimensions195 × 70 × 68 mm

Designed for Long-Term Monitoring Reliability

Instrava Digital pH Meters combine digital electrode technology, high-resolution measurement capability, and large-scale data storage to support professional water quality management.

From industrial compliance verification to environmental field deployment, the system provides stable performance, secure data storage, and precise analytical control.

Instrava — Engineered for Reliable Measurement.

  Instrava OEM/ODM  

Reliable Instruments. Solutions That Fit Your Application.

Instrava is focused on delivering reliable industrial solutions through carefully curated products, application-driven optimization, and flexible customization. We select proven instruments from trusted manufacturers to ensure consistent quality, optimize solutions based on real working conditions to solve practical challenges, and provide tailored configurations to meet specific application needs.

By combining selection expertise with application understanding, Instrava helps customers reduce risk, improve efficiency, and achieve dependable results in complex industrial environments.

symbolizing trust and the beginning of a long-term partnership

  Related Product Recommendations  

Full digital electrodes convert analog signals into digital signals directly at the sensor head.

Advantages include:

  • Reduced signal attenuation over long cable distances

  • Improved resistance to electromagnetic interference

  • More stable signal transmission

  • Enhanced compatibility with digital communication systems

This architecture is particularly beneficial in industrial environments with high electrical noise.

Anti-interference capability is achieved through:

  • Digital signal conversion at the electrode level

  • Shielded cable structure

  • Stable internal signal processing algorithms

  • Isolation between measurement and power circuits

By minimizing analog transmission length, the system reduces susceptibility to external electromagnetic disturbances.

Resolution refers to the smallest displayed increment (0.001 pH in this model).

Accuracy indicates the allowable measurement deviation (±0.1 pH).

High resolution enables detection of small value changes, while accuracy defines the true closeness to the actual pH value.

Both parameters should be considered when evaluating instrument suitability for specific applications.

Long-term drift may occur due to:

  • Electrode aging

  • Reference junction contamination

  • Temperature stress

  • Chemical exposure

The system supports automatic temperature compensation and high-stability digital processing to reduce drift impact.

Routine calibration and preventive electrode maintenance remain essential for sustained performance.

High resolution allows operators to observe subtle fluctuations in pH trends.

In processes requiring tight pH regulation—such as chemical dosing or neutralization control—fine resolution supports more responsive operational decisions.

However, resolution should always be evaluated alongside calibration stability and process repeatability.

Yes.

With IP68 electrode protection, 500,000-record storage capacity, and digital signal stability, the system is suitable for extended monitoring tasks in environmental and industrial projects.

For critical applications, periodic calibration planning and electrode inspection are recommended to maintain long-term reliability.

Why Choose Instrava

Built on Consistency, Not Claims

Focused on Industrial Applications

We specialize in industrial analysis and detection, with a clear understanding of real-world operating environments and requirements.

Strict Product Selection Criteria

Every instrument is evaluated based on performance, stability, and application suitability—not just specifications or pricing.

Reliable Supply & Quality Consistency

We work with trusted manufacturers to ensure stable supply, consistent quality, and dependable delivery.

Practical, Experience-Based Support

Our recommendations are grounded in application understanding, helping customers avoid common issues and achieve reliable results.

Instrava is built to reduce uncertainty—so every decision you make is clearer, safer, and more reliable.

Industrial measurement scene showing a worker using a precision measuring instrument to measure and mark material on a workbench, demonstrating the practical application of measuring instruments in manufacturing and processing.

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