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Liquid Analysis
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 Level Switch Description
Digital pH Meter Applicable Scenarios
The Instrava Digital pH Meter is suitable for:
Industrial water quality control
Wastewater treatment verification
Laboratory analytical testing
Environmental monitoring and field sampling
Chemical process validation
Aquaculture and agricultural water testing
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
pH range: 0.00 – 14.00 pH
Resolution: 0.01 pH
Accuracy: ±0.01 pH
Delivers laboratory-grade measurement precision with stable digital processing.
Integrated mV Measurement Capability
mV range: -1999 – 1999 mV
Resolution: 1 mV
Accuracy: ±0.1% F.S ±1 digit
Supports ORP measurement, electrode diagnostics, and electrochemical research applications.
Wide Temperature Monitoring Range
Temperature range: 0 – 100°C
Resolution: 0.1°C
Accuracy: ±0.4°C
Ensures reliable measurement in variable temperature environments and supports accurate pH correction workflows.
Compact and Ergonomic Design
Dimensions: 123 mm × 72 mm × 33 mm
Lightweight and portable structure
Suitable for both laboratory bench use and on-site field measurement
Engineered for operational efficiency without sacrificing measurement integrity.
Stable Digital Processing
High-resolution display and clear readout
Fast response and stable data output
Designed for consistent repeatability in routine industrial testing
Instrava digital measurement architecture ensures reduced signal noise and improved data consistency.
Liquid Level Switch 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
Instrava Engineering & Customization Support
At Instrava, our instruments are developed with a strong focus on real industrial applications. Each product is designed to operate as a reliable component within measurement, control, and automation systems, rather than as a standalone device.
Our engineering team supports customers during product selection by evaluating process conditions, operating environments, and system requirements, ensuring stable and long-term performance in actual use.
In addition to standard configurations, Instrava offers flexible customization options, including measurement range, materials, output signals, communication interfaces, and installation methods. All custom solutions are engineered to meet industrial standards and application-specific demands.
We also support OEM projects and system integration, providing consistent product design, technical documentation, and long-term supply to ensure smooth integration and reliable operation throughout the project lifecycle.
Electrode aging is typically indicated by:
Reduced slope during calibration
Increased stabilization time
Noticeable offset drift
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.
mV drift may result from:
Reference junction contamination
Temperature fluctuations
Electrode dehydration
Electrical interference or grounding issues
Routine cleaning, proper storage in electrode solution, and stable temperature conditions help minimize drift and maintain measurement stability.
Temperature influences both:
The electrode slope (Nernst response).
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.
For industrial environments:
Perform calibration before critical measurements.
Use at least two-point calibration for improved linearity.
Verify calibration daily in high-precision laboratory settings.
Always use fresh buffer solutions.
Consistent calibration ensures traceability and long-term measurement integrity.
Best practices include:
Rinse with distilled water after each measurement.
Store in appropriate electrode storage solution.
Avoid dry storage.
Periodically clean the junction according to application conditions.
Preventive maintenance significantly extends electrode lifespan and preserves measurement accuracy.
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 Choose Instrava
By choosing Instrava, you gain a partner with a deep understanding of industrial applications and the expertise to meet today’s operational challenges.
Our role extends beyond products—we support your success through dependable solutions and long-term commitment.
Engineering-Driven Innovation
Innovation at Instrava is guided by real industrial requirements. We continuously refine our technologies to address evolving operational challenges, ensuring practical and reliable performance in demanding environments.
Application-Specific Customization
We provide engineering-level customization to match specific process conditions. From measurement range and materials to output signals and installation options, our solutions are configured to fit real applications.
Proven Quality and Reliability
Quality and reliability are fundamental to every Instrava product. Manufactured under strict quality control and thoroughly tested, our instruments deliver accurate, stable, and long-term performance.
Global Capability with Local Support
Instrava combines global engineering expertise with responsive local support, ensuring our partners benefit from internationally aligned technology and timely regional service.
Comprehensive Product Portfolio
Our broad portfolio of measurement and control instruments enables us to address a wide range of industrial needs, providing integrated solutions from a single, reliable source.
Partner-Oriented Engineering Support
We work closely with our partners from technical consultation to after-sales support. Our focus is on delivering solutions that create lasting value and support long-term operational success.
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