Testo 206-pH2 pH and Temperature Meter

The Testo 206-pH2 pH meter is built tough for on-site measurements of pH and temperature in semi-solid, viscous, and protein-containing media. It’s a reliable bit of kit for anyone needing accurate readings in demanding environments, from food production lines to industrial processes.

Having to measure pH on the spot for something like a batch of cooling lubricant or a dairy product means you need a tool that can handle a bit of mess and still give you reliable readings without fuss.

Best For

• Quality control in the food industry (cheese, fruit, jellies, meat products)
• Cosmetics manufacturing (creams, oils, lotions)
• Metalworking (water-mixed solid cooling lubricants)
• Drinking water analysis (on-site checks)

Compatibility

This meter is purpose-built for accurate readings in semi-solid, viscous, and protein-containing media. This includes a wide range of foodstuffs, liquid and paste-like cosmetics, and industrial water-mixed solid cooling lubricants. If you're running a different model, check fittings and specs before ordering.

Features

• Simultaneous Measurement: Integrated pH immersion tip and NTC temperature sensor allow for quick, combined pH and core temperature readings.
• Durable Sensor Design: Features a leakproof, maintenance-free gel electrolyte with annular clearance, making the pH sensor resistant to dirt and built for the long haul.
• Flexible Calibration: Supports 1, 2, or 3-point calibration to ensure accuracy, complemented by an automatic final value recognition function.
• Rugged Protection: Comes with a TopSafe protective case, providing IP68 waterproofing and protection against impact. The case is also hygienic and dishwasher safe.
• Clear Display: Easy-to-read LCD provides a 2-line display for both parameters.

Technical Specifications

What's in the Box

• Testo 206-pH2 pH/temperature measuring instrument
• Gel storage cap
• TopSafe protective case
• Belt buckle
• Wall bracket

Using It on the Job

1. Before each use, clean the probe tip thoroughly with distilled water to remove any residues from previous measurements.
2. Perform a 1, 2, or 3-point calibration using fresh, certified pH buffer solutions (e.g., pH 4.01, 7.00) according to the job requirements.
3. Gently immerse the pH immersion tip into the semi-solid or viscous medium, ensuring the sensor is fully covered.
4. Allow the reading to stabilise; the automatic final value recognition will help confirm when it's ready to log.
5. After measurement, rinse the probe with distilled water and replace the gel storage cap to keep the sensor hydrated and ready for the next job.
6. The TopSafe case can be cleaned by hand or in a dishwasher to maintain hygiene, especially in food or cosmetic applications.

Limitations & Safety Notes

• Not designed for use with highly corrosive or extremely abrasive media that could damage the sensitive pH probe.
• Ensure the pH probe tip is fully immersed in the sample for accurate and stable readings, particularly for temperature compensation.
• Regular calibration with quality buffer solutions is critical to maintain measurement accuracy over time.
• Always adhere to good hygiene practices, especially when conducting measurements in food or pharmaceutical environments.
• The specified short-term temperature limit of +80 °C should not be exceeded for more than five minutes to prevent sensor damage.

Keep your buffer solutions fresh and calibrate regularly. A dodgy calibration is worse than no calibration, especially when food safety or industrial process control is on the line. Old buffer solutions give you false readings.

Pair With

Pair with Testo pH buffer solutions (like pH 4.01 and 7.00), a spare pH probe, and replacement CR2032 batteries to keep your measurements accurate and your workflow smooth.