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Liquid Analysis
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The Instrava Portable Water Quality Meter is a professional-grade, multi-parameter handheld instrument designed for rapid, precise, and reliable on-site water analysis. Integrating plug-and-use sensors for pH, dissolved oxygen, conductivity, turbidity, COD, and ammonia nitrogen, this meter enables instant detection and verification.
With smart lock, automatic compensation, dual power supply, and IP67/IP68 rated sensors, the instrument delivers accurate, repeatable results in challenging environments. Its portable suitcase design allows engineers, technicians, and procurement managers to quickly respond to emergencies, conduct routine monitoring, and ensure compliance with water quality standards.
Liquid Analysis Description
Portable Multi-Parameter Water Quality Meter Application Scenarios
Applicable Industries & Use Cases
Drinking Water & Municipal Systems – Ensure potable water meets safety and clarity standards.
Industrial Water & Wastewater Treatment – Monitor process water, cooling towers, and effluent discharge for compliance.
Aquaculture & Agriculture – Track dissolved oxygen, pH, and ammonia nitrogen levels in ponds, tanks, and irrigation systems.
Laboratory & R&D – On-site verification, sample analysis, and data validation.
Surface Water Monitoring – Rivers, lakes, and reservoirs for environmental compliance and pollution detection.
Emergency Response & Field Operations – Rapid deployment for unexpected water quality events or abnormal readings.
This multi-functional instrument consolidates multiple devices into one portable solution, reducing operational costs while providing comprehensive water monitoring capabilities for engineers and procurement teams.


Portable Multi-Parameter Water Quality Meter Engineering Advantages
Key Engineering Benefits for Professional Users
Plug-and-Use Sensor Design – Pre-calibrated electrodes minimize setup time and human error.
Smart Lock & Alarm Functions – Automatically stabilizes and locks readings; alarms notify when parameters exceed safe limits.
Automatic Compensation – Temperature, salinity, and air pressure compensation ensures consistent accuracy in varying field conditions.
Rugged, Field-Ready Construction – Handheld controller IP67, electrodes IP68, resistant to dust, water, and moisture exposure.
Extended Data Management – Automatic interval saving, GPS timestamp, and USB interface simplify data reporting and integration.
Dual Power Supply Options – Lithium or AA/NiMH batteries support long-term field deployment.
User-Friendly Interface – 3.3-inch monochrome LCD display with intuitive menus, electrode switching, and multi-language support.
Compact & Portable – Lightweight components and carrying case facilitate mobility between sites, enabling on-site, lab, or emergency water quality analysis.
Multi-Parameter Consolidation – Combines pH, DO, conductivity, turbidity, COD, and ammonia nitrogen measurement in one unit, reducing the need for multiple instruments.
Self-Calibration & Drift Prevention – Built-in calibration and auto-reset functions prevent long-term drift errors and ensure measurement reliability.
Liquid Analysis Parameter
| Parameter | Range | Accuracy | Repeatability | Resolution | Notes |
|---|---|---|---|---|---|
| pH | 0–14 | ±0.02 pH | ±0.02 pH | 0.01 pH | Temperature range: 0–60°C |
| Dissolved Oxygen | 0–20 mg/L; 0–200% saturation | ±0.3 mg/L | ±0.3 mg/L | 0.01 mg/L | Temperature: 0–50°C |
| COD | 0–600 mg/L (KHP equiv.) | ±5% F.S | – | 0.1 mg/L | Temperature: 5–40°C |
| TOC | 0–240 mg/L (KHP equiv.) | ±5% F.S | – | 0.1 mg/L | – |
| Turbidity | 0–300 NTU | ±5% F.S | ±2% | 0.1 NTU | – |
| Conductivity | 0–20,000 μS/cm | ±1% | ±1% | 0.01 μS/cm | Temperature: 0–60°C |
| Ammonia Nitrogen | 0–100 mg/L NH4-N | ±10% or ±0.5 mg/L | – | 0.01 mg/L | Depending on calibration |
| Temperature | 0–50°C | ±0.3°C | – | 0.1°C | For pH, DO, COD, TOC, Turbidity |
| Electrode Rating | IP68 | – | – | – | Default cable length 1 m, customizable |
| Controller Rating | IP67 | – | – | – | – |
| Display | 3.3-inch monochrome LCD | – | – | – | – |
| Data Storage | Automatic interval save, auto-lock | – | – | – | GPS timestamp supported |
| Power Supply | Lithium / AA NiMH battery | – | – | – | – |
| Weight | 420 g | – | – | – | Controller only |
| Operating Humidity | 10–85% RH | – | – | – | No condensation |
| Operating Temperature | -5 ~ 50°C | – | – | – | – |
Instrava OEM/ODM
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.

Yes, it detects pH, dissolved oxygen, conductivity, turbidity, COD, and ammonia nitrogen with a single device. This consolidation reduces equipment needs, simplifies training, and ensures rapid on-site analysis.
The meter features automatic temperature, salinity, and air pressure compensation. IP67-rated controller and IP68 electrodes ensure stable, repeatable measurements even in harsh or wet environments.
pH: ±0.02, DO: ±0.3 mg/L, Conductivity: ±1%, Turbidity: ±5% F.S, COD/TOC: ±5% F.S. Repeatability for pH and DO is ±0.02 and ±0.3 mg/L respectively, providing trusted results for regulatory compliance and quality control.
Yes, it has automatic interval data saving, GPS timestamp, and USB interface. Up to thousands of measurements can be stored, allowing easy reporting, trend analysis, and long-term documentation.
With plug-and-use electrodes, 3.3-inch monochrome LCD, smart lock, and alarm functions, the meter offers intuitive operation for both engineers and procurement teams, reducing errors and accelerating measurements.
Dual power supply via lithium or AA/NiMH batteries enables long-term field use. The controller weighs only 420 g, and combined with its carrying case, it is highly portable for on-site inspections, emergency response, or multi-location monitoring.
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.
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.
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.
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.
Instrava combines global engineering expertise with responsive local support, ensuring our partners benefit from internationally aligned technology and timely regional service.
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.
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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