Digital pH Meter-High-Accuracy Digital pH, mV and Temperature Measurement for Professional Water Analysis
Engineered for Precision and Reliable Electrochemical Measurement
The Instrava Digital pH Meter is designed for accurate and stable electrochemical measurement across laboratory, industrial, and environmental applications.
With ±0.01 pH accuracy, integrated mV measurement capability, and temperature monitoring up to 100°C, the instrument provides dependable analytical performance for routine testing and critical process verification.
Compact in structure and fully digital in operation, the device ensures fast response, intuitive measurement, and reliable repeatability across diverse water quality environments.
For professionals requiring precision, stability, and operational simplicity, Instrava delivers measurement confidence.
Liquid Analysis Description
Digital pH Meter Applicable Scenarios
The Instrava Digital pH Meter is suitable for:
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Industrial water quality control
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Wastewater treatment verification
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Laboratory analytical testing
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Environmental monitoring and field sampling
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Chemical process validation
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Aquaculture and agricultural water testing
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Educational and research laboratories
Its multi-parameter capability (pH, mV, temperature) supports both routine measurement and advanced electrochemical diagnostics.
Digital pH Meter Engineering Advantages
High-Precision Digital Measurement
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pH range: 0.00 – 14.00 pH
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Resolution: 0.01 pH
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Accuracy: ±0.01 pH
Delivers laboratory-grade measurement precision with stable digital processing.
Integrated mV Measurement Capability
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mV range: -1999 – 1999 mV
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Resolution: 1 mV
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Accuracy: ±0.1% F.S ±1 digit
Supports ORP measurement, electrode diagnostics, and electrochemical research applications.
Wide Temperature Monitoring Range
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Temperature range: 0 – 100°C
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Resolution: 0.1°C
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Accuracy: ±0.4°C
Ensures reliable measurement in variable temperature environments and supports accurate pH correction workflows.
Compact and Ergonomic Design
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Dimensions: 123 mm × 72 mm × 33 mm
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Lightweight and portable structure
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Suitable for both laboratory bench use and on-site field measurement
Engineered for operational efficiency without sacrificing measurement integrity.
Stable Digital Processing
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High-resolution display and clear readout
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Fast response and stable data output
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Designed for consistent repeatability in routine industrial testing
Instrava digital measurement architecture ensures reduced signal noise and improved data consistency.
Liquid Analysis Parameter
Digital pH Meter Technical Specifications
pH Measurement
| Parameter | Specification |
|---|---|
| Range | 0.00 – 14.00 pH |
| Resolution | 0.01 pH |
| Accuracy | ±0.01 pH |
mV Measurement
| Parameter | Specification |
|---|---|
| Range | -1999 – 1999 mV |
| Resolution | 1 mV |
| Accuracy | ±0.1% F.S ±1 digit |
Temperature Measurement
| Parameter | Specification |
|---|---|
| Range | 0 – 100°C |
| Resolution | 0.1°C |
| Accuracy | ±0.4°C |
Physical Characteristics
| Parameter | Specification |
|---|---|
| Dimensions | 123 mm × 72 mm × 33 mm |
Designed for Professional Water Quality Control
Instrava develops reliable measurement instruments for industrial and environmental applications where data accuracy and operational stability are essential.
The Digital pH Meter combines precision, portability, and multi-parameter capability to support laboratory verification, process optimization, and regulatory compliance.
From routine testing to advanced electrochemical evaluation, Instrava ensures consistent and dependable performance.
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.
How can electrode aging be identified during routine operation?
Electrode aging is typically indicated by:
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Reduced slope during calibration
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Increased stabilization time
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Noticeable offset drift
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Unstable readings in buffer solutions
When slope falls significantly below theoretical values (approximately 59 mV per pH at 25°C), electrode replacement should be considered to maintain ±0.01 pH accuracy.
What causes mV drift in electrochemical measurements?
mV drift may result from:
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Reference junction contamination
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Temperature fluctuations
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Electrode dehydration
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Electrical interference or grounding issues
Routine cleaning, proper storage in electrode solution, and stable temperature conditions help minimize drift and maintain measurement stability.
How does temperature affect pH measurement accuracy?
Temperature influences both:
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The electrode slope (Nernst response).
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The actual chemical equilibrium of the solution.
Without temperature correction, readings can deviate significantly, especially in high-temperature environments.
Monitoring temperature alongside pH ensures more reliable interpretation of analytical data.
What is the recommended calibration strategy for industrial use?
For industrial environments:
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Perform calibration before critical measurements.
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Use at least two-point calibration for improved linearity.
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Verify calibration daily in high-precision laboratory settings.
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Always use fresh buffer solutions.
Consistent calibration ensures traceability and long-term measurement integrity.
How should electrodes be maintained to ensure long-term performance?
Best practices include:
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Rinse with distilled water after each measurement.
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Store in appropriate electrode storage solution.
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Avoid dry storage.
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Periodically clean the junction according to application conditions.
Preventive maintenance significantly extends electrode lifespan and preserves measurement accuracy.
Is mV mode suitable for ORP measurement?
Yes.
The -1999 to 1999 mV measurement range supports ORP testing when paired with a compatible ORP electrode.
This expands the instrument’s functionality for oxidation-reduction potential monitoring in water treatment and chemical processes.
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.
