pH Meter for Water
Engineered for Accurate and Professional Water Analysis
The Instrava pH Meter for Water is designed for precise electrochemical analysis across laboratory, industrial, and environmental monitoring applications.
With an extended pH measurement range from -2.00 to 20.00 pH and accuracy up to ±0.01 pH, the instrument ensures reliable measurement across acidic, neutral, and alkaline conditions. Automatic temperature compensation, multi-point calibration, and dual international buffer recognition (USA / NIST) provide consistent and traceable results.
Built with data storage, USB communication, and intelligent endpoint locking, this meter is engineered for professionals who require dependable, documented measurement performance.
Liquid Analysis Description
pH Meter for Water-Applicable Scenarios
Instrava pH Meter for Water is suitable for:
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Industrial water quality testing
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Wastewater treatment monitoring
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Drinking water analysis
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Environmental field sampling
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Laboratory chemical testing
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Aquaculture and agricultural water control
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Process quality verification
Its wide measurement range and temperature compensation capability allow use in both standard and extreme pH environments.
pH Meter for Water-Engineering Advantages
High-Accuracy Full-Range Measurement
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Measurement range: -2.00 to 20.00 pH
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Resolution: 0.01 pH
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Accuracy: ±0.01 pH
Provides laboratory-grade precision for demanding analytical applications.
Intelligent Calibration & Buffer Recognition
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1 to 3 point calibration
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Automatic recognition of USA and NIST buffer standards
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Real-time slope and offset display
Ensures compliance with international calibration practices while enhancing linearity and measurement confidence.
Automatic Temperature Compensation (ATC)
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Temperature range: 0 – 105°C
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Automatic or manual compensation
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Compensation range: 0 – 100°C
Maintains measurement stability across fluctuating temperature conditions and improves repeatability in process environments.
Data Management & Connectivity
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Stores up to 100 measurement records
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USB interface for PC data transfer
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Manual or automatic endpoint data lock
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Factory reset function for rapid configuration recovery
Supports traceable documentation and simplified reporting workflows.
Energy-Efficient & Flexible Power Supply
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Auto power-off after 30 minutes of inactivity
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Powered by DC 5V adapter or 3 × AA batteries
Suitable for both laboratory bench use and portable field deployment.
Liquid Analysis Parameter
pH Meter for Water-Technical Specifications
pH Measurement
| Parameter | Specification |
|---|---|
| Measurement Range | -2.00 – 20.00 pH |
| Resolution | 0.01 pH |
| Accuracy | ±0.01 pH |
| Calibration Points | 1 – 3 points |
| Buffer Options | USA (4.01 / 7.00 / 10.01), NIST (4.01 / 6.86 / 9.18) |
| Slope & Offset Display | Yes |
| Data Lock | Manual or Automatic Endpoint |
Temperature Measurement
| Parameter | Specification |
|---|---|
| Measurement Range | 0 – 105°C (32 – 221°F) |
| Resolution | 0.1°C / 0.1°F |
| Accuracy | ±0.5°C / ±0.9°F |
| Offset Calibration | 1 point (±10°C adjustment) |
| Temperature Compensation | Manual or Automatic |
| Compensation Range | 0 – 100°C |
System & General Specifications
| Parameter | Specification |
|---|---|
| Data Storage | 100 records |
| Communication Output | USB interface |
| Auto Power-Off | After 30 minutes |
| Reset Function | Factory default restoration |
| Power Supply | DC 5V adapter or 3 × AA batteries |
Designed for Professional Water Monitoring
Instrava focuses on delivering reliable analytical instruments for water quality measurement across industrial and environmental sectors.
By combining high-precision sensing, intelligent calibration, temperature compensation, and digital data management, the Instrava pH Meter for Water supports accurate decision-making in quality control, regulatory compliance, and process optimization.
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 does Automatic Temperature Compensation (ATC) improve measurement accuracy?
pH measurement is temperature dependent because electrode slope varies with temperature according to the Nernst equation.
The integrated ATC function continuously adjusts the slope calculation based on measured temperature, ensuring accurate pH values across 0–100°C compensation range.
Without proper compensation, measurement deviation can increase significantly in high-temperature environments.
When should manual temperature compensation be used instead of ATC?
Manual temperature compensation is recommended when:
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Using non-standard electrodes without integrated temperature sensors
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Measuring samples where temperature stabilization is delayed
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Conducting calibration under controlled laboratory conditions
Manual input allows controlled correction when automatic sensing is not preferred.
How frequently should calibration be performed in industrial applications?
Calibration frequency depends on process criticality:
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Daily calibration for laboratory or compliance-sensitive testing
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Weekly calibration for routine industrial water monitoring
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Before critical audits or validation measurements
The 1–3 point calibration system with automatic USA/NIST buffer recognition ensures traceable and standardized calibration procedures.
Can this meter reliably measure extreme pH values such as below 0 or above 14?
Yes.
With an extended measurement range of -2.00 to 20.00 pH, the instrument supports extreme acidity and alkalinity testing. However:
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Proper electrode selection is critical
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Regular calibration is essential at extreme ranges
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Electrode chemical compatibility must be verified
Performance at extreme pH depends primarily on electrode condition and correct calibration.
How is slope and offset information used for electrode diagnostics?
The instrument displays real-time slope and offset values during calibration.
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Abnormal slope values may indicate electrode aging
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Excessive offset may suggest contamination or reference junction issues
Monitoring these parameters allows preventive maintenance and ensures long-term measurement reliability.
How can measurement data be exported and documented?
The meter includes a USB communication interface for PC data transfer.
Stored data (up to 100 records) can be exported for:
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Laboratory documentation
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Compliance reporting
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Process trend analysis
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Quality control traceability
This supports structured data management in regulated industrial environments.
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.
