pH and Dissolved Oxygen Meters

Fast and Precise pH and Dissolved Oxygen Measurements

A pH and dissolved oxygen (DO) meter is an analytical instrument that can measure both the pH and dissolved oxygen in aqueous media. Our pH and DO meters are intuitive, digital, and combined into one single instrument for ease of use. You can also export data onto a USB memory stick, print results, and meet stringent compliance requirements.

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Advantages of METTLER TOLEDO's pH Meters

Measure Different Parameters

pH, conductivity or dissolved oxygen are common parameters that are often measured in the laboratory. Choose from single- or multi-channel benchtop meters to measure up to three parameters simultaneously in the same or different samples.

Benefit from a Broad Sensor Portfolio

Our comprehensive electrode portfolio complements our meter offerings. Ensure you use the most suitable sensor for every application in order to obtain accurate results in your laboratory. Read more

Fully Customizable to Your Needs

METTLER TOLEDO is a complete solution provider, from meters and sensors to calibration solutions and software. Create an effective and efficient system with seamless measurement, data transfer and automation.

Use Guided Sample Workflows

Set up your own methods with the SevenExcellence™ benchtop meter which guides operators step-by-step through the measurement process. It also offers a number of predefined methods that can quickly and easily be adapted to your requirements. Read more

Protect Your Data

Avoid unauthorized changes and define measurement processes and workflows with SevenExcellence™ user management. The SevenExcellence meter is a suitable choice for highly regulated environments. When paired with LabX™ software, all operations are recorded in an audit trail. Read more

Automate Your pH Analysis

Increase productivity and eliminate measurement inconsistencies among users with the SevenExcellence™ benchtop meter and InMotion™ autosampler. This system supports USP <791> and <645> compliance, and offers fully automated calibration of sensors and measurements of up to 300 samples. Read more

Safely Measure in Harsh Environments

Working in harsh environments may require a particularly robust instrument to extend durability and lifetime. We offer benchtop meters with IP54 protection and a replaceable cover, making them resistant to spills or dust, and safe from chemicals. Read more

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Application Specific Sensors

Accurate measurements require the right equipment. Find the appropriate sensor for a wide range of applications and measurement parameters including pH, ORP, conductivity, and ion concentration determinations. Read more

Quality Solutions for Calibration and Care

pH, ORP, conductivity, ion and DO readings are only as accurate as the solutions used for calibration. We also offer maintenance and verification solutions for high measurement precision and uptime. Read more

Expert Application Support

Our pH Competence and Support Center (pH CSC) offers you easy access to dedicated application specialists for your pH, ORP, ion, conductivity, and DO measurements. These specialists provide know-how to help ensure a high degree of success in all your critical electrochemical analyses. Read more

Manage Data with LabX Software

LabX™ is a software that can help you comply more easily with regulatory standards such as FDA 21 CFR Part 11. LabX records all relevant actions taken at the instrument or PC in the audit trail for full traceability and flexibility. Read more

Increase Efficiency with InMotion Autosampler

Connect your benchtop meter with an InMotion™ autosampler to speed up your analysis. The autosampler, which handles up to 300 samples, automatically executes measurements, calibrations, and cleaning/conditioning steps to ensure high throughput and repeatable results. Read more

Meter and Sensor Accessories

Our meters are equipped with various interfaces that allow you to connect peripherals such as printers to document results, barcodes for sample identification, or stirrers to mix your sample while measuring. Read more

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Explore Our Services - Tailored to Fit Your Equipment

We support and service your measurement equipment through its entire life-cycle, from installation to preventive maintenance and calibration to equipment repair.

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