
How to Choose the Right Liquid Analysis Solution for Industrial Applications
Selecting the right liquid analysis solution is critical for industrial process efficiency, product quality, and regulatory compliance. With multiple parameters...
Home » Products » Liquid Analysis » Portable Digital pH Meter: Precision and Durability for Field and Lab Testing


The Portable Digital pH Meter offers cutting-edge technology and exceptional durability, designed for reliable performance in both laboratory and field environments. With its compact, lightweight design and easy-to-read LCD display, this meter provides the perfect combination of portability, precision, and ease of use.
High-Precision Measurements: Accurately measure pH, mV, and temperature with a resolution of 0.01 pH, 1 mV, and 0.1°C.
Intelligent Features: Equipped with automatic temperature compensation (ATC), it ensures precise measurements across a wide temperature range of 0-80°C (32-176°F).
Extended Battery Life: Powered by a lithium battery with efficient power management, ensuring long-lasting performance for extended field use.
Enhanced Durability: Built to withstand harsh environments with an IP65 waterproof and dustproof rating, making it ideal for outdoor and industrial applications.
Multiple Calibration Options: Supports one-point and two-point calibration with three pH buffer choices for versatile usage.
Liquid Analysis Description
Portable Digital pH Meter Applicable Scenarios
The Portable Digital pH Meter is ideal for applications where precise pH, mV, and temperature measurements are critical:
Water Quality Monitoring: Perfect for on-site testing of natural water bodies, including lakes, rivers, and aquariums.
Environmental Analysis: Easily assess soil, water, and other environmental factors in agricultural, ecological, and environmental fields.
Aquaculture: Ensures optimal water conditions for aquatic life by monitoring pH levels in fish farms and other aquatic systems.
Laboratories: Whether in educational, research, or industrial labs, the meter provides reliable and quick pH readings for various testing requirements.
Field Testing: Portable and easy-to-use for quick pH testing at construction sites, environmental studies, and outdoor scientific research.


Portable Digital pH Meter Engineering Advantages
Advanced Technology: The meter features a 32-bit microprocessor for accurate data processing, offering automatic temperature compensation (ATC) and stable measurements in varying environmental conditions.
Power Efficiency: With low power consumption, the meter uses a lithium battery that supports long-term field usage. The auto-off feature conserves battery life when not in use.
IP65 Rating: The IP65 protection level makes the device resistant to dust and water, allowing it to function effectively in harsh environments like labs or outdoors.
User-Friendly Interface: The 3.5-inch LCD display provides a clear and easy-to-read output with a backlight for visibility in low-light environments. The intuitive prompts make it easy to operate for both beginners and experienced users.
Versatile Calibration: Supports one-point or two-point calibration with three different pH buffer solutions, offering precise and repeatable measurements every time.
Data Management: Store up to 256 data points for easy tracking and future reference, which can be exported in Excel format for analysis and documentation.
Liquid Analysis Parameter
| Feature | Specification |
|---|---|
| Measuring Range | pH: 0.00 – 14.00 pH mV: -1999.9 ~ 1999.9 mV Temp: 0.0 – 80.0°C (32-176°F) |
| Resolution | pH: 0.01 pH mV: 1 mV Temp: 0.1°C (0.1°F) |
| Accuracy | pH: ±0.01 pH mV: ±0.1% F.S Temp: ±0.5°C |
| Power Supply | 3 x AAA batteries |
| Size | 165 x 75 x 51 mm |
| Weight | 270g (without battery) |
| Protection Grade | IP65 (Waterproof and Dustproof) |
| Temperature Range | 0.0 to 80.0°C (32 to 176°F) |
| Battery Type | 3 x AAA batteries |
| Calibration | 1-Point or 2-Point Calibration with pH buffer solutions |
Instrava OEM/ODM
Reliable Instruments. Solutions That Fit Your Application.
Instrava is focused on delivering reliable industrial solutions through carefully curated products, application-driven optimization, and flexible customization. We select proven instruments from trusted manufacturers to ensure consistent quality, optimize solutions based on real working conditions to solve practical challenges, and provide tailored configurations to meet specific application needs.
By combining selection expertise with application understanding, Instrava helps customers reduce risk, improve efficiency, and achieve dependable results in complex industrial environments.

What is the advantage of automatic temperature compensation (ATC) in this meter?
Automatic Temperature Compensation (ATC) ensures accurate pH measurements even when the temperature varies. This feature is especially important for consistent readings in outdoor or field testing conditions where temperature fluctuations are common.
How do I properly calibrate the pH meter?
The meter supports 1-point and 2-point calibration with three pH buffer options. Calibration is easy and can be done by selecting the appropriate buffer solution (pH 4.01, 7.00, 10.01), ensuring precise and repeatable measurements.
What maintenance is required for the electrode?
After use, clean the electrode with pure water. If the electrode has been idle for a long period, rinse and dry it, then store it in a soaking solution. For long-term maintenance, you may need to renew the electrode by soaking it in a potassium chloride solution.
How does the auto-off feature help conserve battery life?
The meter features an auto-off function that automatically shuts down after 10 minutes of inactivity, which helps preserve battery life during extended periods of non-use, especially in field applications.
How does the IP65 rating affect the meter’s performance?
With an IP65 rating, this pH meter is both waterproof and dustproof, ensuring reliable operation in harsh environments, including outdoor or industrial settings. You can confidently use it for field testing where exposure to water or dust is likely.
Can the data be stored and transferred for further analysis?
Yes, the meter stores up to 256 sets of data and allows for easy data transfer to a computer via USB. The data can be exported in Excel format for further analysis and record-keeping.
Built on Consistency, Not Claims
We specialize in industrial analysis and detection, with a clear understanding of real-world operating environments and requirements.
Every instrument is evaluated based on performance, stability, and application suitability—not just specifications or pricing.
We work with trusted manufacturers to ensure stable supply, consistent quality, and dependable delivery.
Our recommendations are grounded in application understanding, helping customers avoid common issues and achieve reliable results.
Instrava is built to reduce uncertainty—so every decision you make is clearer, safer, and more reliable.

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