Accurately measure the hydrogen-ion level of your water-based solutions with this pH meter from Testo. Its compact size of just 197 (length) x 33 (width) x 20mm (height) makes it easy to hold for portable use, and a long battery life of 80 hours allows you to take measurements for long periods of time without a mains connection. You can easily monitor pH levels between 0pH and +14pH as the two-line LCD (liquid-crystal display) screen provides easy-to-read results. A measurement reading rate of two per second allows for rapid monitoring.

• Supplied with maintenance-free gel electrolyte to protect the sensors from dirt and dust
• Wide operating temperature range between 0°C and +60°C for use in hot and cold environments
• IP68 (ingress protection) rating indicates protection against dust particles and submersion in 1.5m of water for up to 30 minutes

• Laboratories and workshops
• Agricultural industry
• Brewing industries
• Food production

This meter has a pH measurement accuracy of ±0.02 and a temperature tolerance of ±0.4°C, giving you precise results.

pH & Water Analysis - pH & Temperature Meters Testo 200 Series

Instead of a liquid electrolyte, these probes use a gel as a reference substance for pH measurement. This facilitates the use of a hole diaphragm between the measurement electrode and housing in place of the micro-porous structure usually used in pH probes.They are almost completely maintenance-free, robust and unaffected by dirt and dust.,Gelcap,A potassium chloride solution is usually used to store pH probes which, as with every liquid, can leak. To prevent this the potassium chloride solution is available in a gel filled probe/meter cap that does not drip or leak.