Liquid Analysis

pH Meters-Precision Water Quality Measurement for Laboratory and Field Applications

Engineered for Accurate and Reliable pH Analysis

Instrava pH Meters are designed for professional water quality analysis in industrial, environmental, laboratory, and field applications.

With high measurement accuracy (±0.02 pH), wide temperature range compensation, and multi-parameter capability (pH / mV / Temperature), the instrument provides stable and repeatable data for process verification, quality control, and compliance monitoring.

Designed with a large display interface, USB communication, and multi-point automatic calibration, this meter ensures both operational simplicity and analytical precision.

For industries where measurement confidence matters, Instrava delivers dependable performance backed by engineering-grade design.

  Liquid Level Switch Description  

pH Meters Applicable Scenarios

Instrava pH meters are suitable for:

  • Industrial water quality monitoring

  • Wastewater treatment process verification

  • Laboratory analysis and sample testing

  • Environmental field measurement

  • Chemical and process control testing

  • Aquaculture and drinking water testing

  • Educational and research laboratories

With multiple electrode compatibility options (standard pH electrode or antimony electrode), the device adapts to diverse measurement environments.

Digital pH meter with large LCD display, touch-sensitive buttons, and external pH electrode sensor for water quality measurement.
Portable pH meter display with pH and temperature measurement features, suitable for water quality testing.

pH Meters Engineering Advantages

High Measurement Precision

  • pH measurement range: 0.00 – 14.00 pH

  • Resolution: 0.01 pH

  • Accuracy: ±0.02 pH

Ensures laboratory-level precision in both field and bench applications.

Multi-Parameter Capability

  • mV measurement range: -2000 ~ 2000 mV

  • Temperature measurement range: -10.0 ~ 110.0°C

  • Supports manual temperature compensation

Enables expanded electrochemical testing and process validation.

Stable Calibration & Data Integrity

  • 3-point automatic calibration

  • Built-in data storage for 256 records

  • Automatic power-off after 10 minutes of inactivity

Designed to reduce human error and maintain consistent measurement performance.

Professional Display & Operation

  • Large LCD display (65 × 40 mm)

  • Clear multi-function interface

  • Simple and intuitive operation

Supports efficient daily measurement tasks in industrial and laboratory environments.

Portable & Field-Ready Design

  • Powered by 2 × AAA batteries

  • Operating temperature: -5 ~ 60°C

  • Relative humidity: < 90%

  • USB communication interface

Compact structure with flexible deployment for on-site testing.

  Liquid Level Switch Parameter  

pH Meters Technical Specifications

ParámetroEspecificación
pH Measurement Range0.00 – 14.00 pH
pH Resolution0.01 pH
pH Accuracy±0.02 pH
mV Measurement Range-2000 – 2000 mV
mV Resolution1 mV
mV Accuracy±0.2% FS
Temperature Range-10.0 – 110.0°C
Temperature Resolution0.1°C
Temperature Accuracy±0.2°C
Temperature CompensationManual
Calibración3-point automatic calibration
Data Storage256 sets
Display Size65 × 40 mm
Interfaz de comunicaciónUSB
Fuente de alimentación2 × AAA batteries
Temperatura de funcionamiento-5 – 60°C
Humedad relativa< 90%
Compatible ElectrodesStandard pH electrode / Antimony electrode

  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.

simboliza la confianza y el inicio de una colaboración a largo plazo

  Recomendaciones de productos relacionados  

The instrument supports both standard glass pH electrodes and antimony electrodes.

  • Glass electrodes are recommended for laboratory and general water analysis.

  • Antimony electrodes are suitable for harsher industrial environments where mechanical strength is required.

Selection depends on process temperature, chemical composition, and mechanical conditions.

For laboratory-grade accuracy, calibration should be performed:

  • Daily in high-precision laboratory environments

  • Weekly or before critical measurements in industrial applications

The instrument supports 3-point automatic calibration, ensuring improved linearity and measurement confidence.

This model supports manual temperature compensation.

Users can input the measured sample temperature to correct pH values accordingly.
For applications with large temperature fluctuations, proper compensation is essential to maintain ±0.02 pH accuracy.

Yes.

The instrument includes a USB communication interface, allowing data export to a computer for analysis, reporting, and record keeping.
It also supports internal storage of up to 256 measurement records.

  • pH mode is used for acidity/alkalinity measurement.

  • mV mode measures electrode potential directly and is often used for ORP measurement or electrode diagnostics.

The dual-mode capability increases flexibility for electrochemical testing.

Yes.

Powered by two AAA batteries and designed for operation between -5°C and 60°C, the device is suitable for both laboratory and on-site field measurements.
Its compact design and automatic power-off function enhance portability and energy efficiency.

Por qué elegir Instrava

Al elegir Instrava, obtiene un socio con un profundo conocimiento de las aplicaciones industriales y la experiencia necesaria para hacer frente a los retos operativos actuales.
Nuestro papel va más allá de los productos: respaldamos su éxito con soluciones fiables y un compromiso a largo plazo.

Innovación impulsada por la ingeniería

La innovación en Instrava se guía por necesidades industriales reales. Perfeccionamos continuamente nuestras tecnologías para hacer frente a los cambiantes retos operativos, garantizando un rendimiento práctico y fiable en entornos exigentes.

Personalización específica de la aplicación

Ofrecemos personalización a nivel de ingeniería para adaptarnos a las condiciones específicas del proceso. Desde el rango de medición y los materiales hasta las señales de salida y las opciones de instalación, nuestras soluciones están configuradas para adaptarse a aplicaciones reales.

Calidad y fiabilidad demostradas

La calidad y la fiabilidad son fundamentales en todos los productos Instrava. Fabricados bajo estrictos controles de calidad y sometidos a pruebas exhaustivas, nuestros instrumentos ofrecen un rendimiento preciso, estable y a largo plazo.

Capacidad global con apoyo local

Instrava combina la experiencia mundial en ingeniería con una asistencia local receptiva, lo que garantiza que nuestros socios se beneficien de una tecnología alineada internacionalmente y de un servicio regional puntual.

Amplia cartera de productos

Nuestra amplia cartera de instrumentos de medición y control nos permite dar respuesta a una amplia gama de necesidades industriales, proporcionando soluciones integradas a partir de una fuente única y fiable.

Asistencia técnica orientada a los socios

Trabajamos en estrecha colaboración con nuestros socios, desde el asesoramiento técnico hasta la asistencia posventa. Nos centramos en ofrecer soluciones que generen un valor duradero y contribuyan al éxito operativo a largo plazo.

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