pH Meters-Precision Water Quality Measurement for Laboratory and Field Applications

Engineered for Accurate and Reliable pH Analysis

Instrava pH Meters are designed for professional water quality analysis in industrial, environmental, laboratory, and field applications.

With high measurement accuracy (±0.02 pH), wide temperature range compensation, and multi-parameter capability (pH / mV / Temperature), the instrument provides stable and repeatable data for process verification, quality control, and compliance monitoring.

Designed with a large display interface, USB communication, and multi-point automatic calibration, this meter ensures both operational simplicity and analytical precision.

For industries where measurement confidence matters, Instrava delivers dependable performance backed by engineering-grade design.

Liquid Analysis Description  

pH Meters Applicable Scenarios

Instrava pH meters are suitable for:

  • Industrial water quality monitoring

  • Wastewater treatment process verification

  • Laboratory analysis and sample testing

  • Environmental field measurement

  • Chemical and process control testing

  • Aquaculture and drinking water testing

  • Educational and research laboratories

With multiple electrode compatibility options (standard pH electrode or antimony electrode), the device adapts to diverse measurement environments.

Digital pH meter with large LCD display, touch-sensitive buttons, and external pH electrode sensor for water quality measurement.
Portable pH meter display with pH and temperature measurement features, suitable for water quality testing.

pH Meters Engineering Advantages

High Measurement Precision

  • pH measurement range: 0.00 – 14.00 pH

  • Resolution: 0.01 pH

  • Accuracy: ±0.02 pH

Ensures laboratory-level precision in both field and bench applications.

Multi-Parameter Capability

  • mV measurement range: -2000 ~ 2000 mV

  • Temperature measurement range: -10.0 ~ 110.0°C

  • Supports manual temperature compensation

Enables expanded electrochemical testing and process validation.

Stable Calibration & Data Integrity

  • 3-point automatic calibration

  • Built-in data storage for 256 records

  • Automatic power-off after 10 minutes of inactivity

Designed to reduce human error and maintain consistent measurement performance.

Professional Display & Operation

  • Large LCD display (65 × 40 mm)

  • Clear multi-function interface

  • Simple and intuitive operation

Supports efficient daily measurement tasks in industrial and laboratory environments.

Portable & Field-Ready Design

  • Powered by 2 × AAA batteries

  • Operating temperature: -5 ~ 60°C

  • Relative humidity: < 90%

  • USB communication interface

Compact structure with flexible deployment for on-site testing.

Liquid Analysis Parameter  

pH Meters Technical Specifications

Parameter Specification
pH Measurement Range 0.00 – 14.00 pH
pH Resolution 0.01 pH
pH Accuracy ±0.02 pH
mV Measurement Range -2000 – 2000 mV
mV Resolution 1 mV
mV Accuracy ±0.2% FS
Temperature Range -10.0 – 110.0°C
Temperature Resolution 0.1°C
Temperature Accuracy ±0.2°C
Temperature Compensation Manual
Calibration 3-point automatic calibration
Data Storage 256 sets
Display Size 65 × 40 mm
Communication Interface USB
Power Supply 2 × AAA batteries
Operating Temperature -5 – 60°C
Relative Humidity < 90%
Compatible Electrodes Standard pH electrode / Antimony electrode

Instrava OEM/ODM  

Tailored Sourcing & Customization: Getting You the Exact Product You Need

As your trusted supplier and sourcing partner, we bridge the gap between your custom requirements and China’s vast manufacturing capabilities.

Finding the right product in a massive supply chain can be challenging. That is where we step in.

As a curated industrial supplier, our core value is simple: we stand in your shoes to help you procure the most optimal products. Whether you are an EPC contractor needing specialized technical compliance, an OEM equipment manufacturer looking for custom branding, or an industrial distributor/trader seeking competitive edge, we customize and tailor products to fit your exact procurement needs.

How We Customize to Fit Your Procurement Needs

  • For EPC Contractors & Engineers: We custom-configure instruments and devices to match your precise datasheets—tailoring process connections, exotic materials, signal protocols, and managing third-party calibration and testing so you get project-ready solutions.

  • For OEM Equipment Manufacturers: We provide comprehensive OEM/ODM customization, including custom housing, labeling, branding (private labeling), and tailored technical specifications to seamlessly integrate with your machinery.

  • For Industrial Distributors & Traders: We offer flexible customization in packaging, product ranges, and technical parameters, helping you differentiate your portfolio and win more local bids.

Why Partner with Us for Custom Sourcing?

  • One-Stop Engineering Alignment: You don’t have to deal with multiple factories. We translate your technical requirements into precise manufacturer blueprints.

  • Strict Quality & Compliance Safeguard: We oversee the entire customization and production process in China, ensuring the final customized product meets your local standards and certifications.

  • Our Ultimate Value: We don’t just sell what’s on the shelf. We find, customize, and deliver the most suitable and cost-effective product for your unique application.

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Related Product Recommendations  

The instrument supports both standard glass pH electrodes and antimony electrodes.

  • Glass electrodes are recommended for laboratory and general water analysis.

  • Antimony electrodes are suitable for harsher industrial environments where mechanical strength is required.

Selection depends on process temperature, chemical composition, and mechanical conditions.

For laboratory-grade accuracy, calibration should be performed:

  • Daily in high-precision laboratory environments

  • Weekly or before critical measurements in industrial applications

The instrument supports 3-point automatic calibration, ensuring improved linearity and measurement confidence.

This model supports manual temperature compensation.

Users can input the measured sample temperature to correct pH values accordingly.
For applications with large temperature fluctuations, proper compensation is essential to maintain ±0.02 pH accuracy.

Yes.

The instrument includes a USB communication interface, allowing data export to a computer for analysis, reporting, and record keeping.
It also supports internal storage of up to 256 measurement records.

  • pH mode is used for acidity/alkalinity measurement.

  • mV mode measures electrode potential directly and is often used for ORP measurement or electrode diagnostics.

The dual-mode capability increases flexibility for electrochemical testing.

Yes.

Powered by two AAA batteries and designed for operation between -5°C and 60°C, the device is suitable for both laboratory and on-site field measurements.
Its compact design and automatic power-off function enhance portability and energy efficiency.

Why Trust Instrava?

We select manufacturers from a neutral, impartial standpoint, always with your best interests in mind.

Our very existence depends on helping you source the products that are the perfect fit for your needs.

Based in China, we are able to conduct on-site inspections of production environments and product quality firsthand.

We help you avoid intermediaries posing as factories.

We facilitate smoother after-sales support, eliminating time zone issues and the delays often associated with dealing directly with factories.

Our multilingual team ensures effective communication.

For a trading startup, every interaction with a client is a precious opportunity—a sign that you are willing to place your trust in us and give us the chance to prove ourselves.
In the digital age, while information is easily accessible, misconceptions often cloud the trust between people.

Instrava relies entirely on trust; it is our core philosophy and the foundation of our existence in society. It is the fundamental basis for our long-term growth and our commitment to serving the community.

Please place your trust in us.

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