Mettler Toledo Durable pH Probes for Harsh Applications support pH and pH/ORP measurement in demanding industrial environments where process chemistry, oxidizing media, solvents, highly acidic or alkaline conditions, or specialized chlor-alkali requirements can create challenges for general-purpose pH probes.
This product family includes selected pH and pH/ORP Probes designed for chemical processing, harsh process conditions, and application-specific measurement needs.
Available models include digital sensor options and specialized configurations for tough process media.

Key Characteristics
- Designed for demanding chemical and industrial process applications
- Supports pH and pH/ORP measurement in harsh or specialized process environments
- Includes models for challenging media such as oxidizing media, solvents, acid or alkali solutions, and chlor-alkali production
Ideal Applications
- Chemical process pH measurement
- Harsh process streams involving solvents, oxidizing media, or acid/alkali conditions
- Chlor-alkali production applications requiring pH and ORP measurement
Product Family Includes
- InPro4260i/SG/120 pH Sensor
- InPro4800i/SG/425 pH Sensor
- InPro4850i pH/ORP Probes
Industries Served
- Chemical Processing
- Chlor-alkali Production
- Industrial Process Manufacturing
- Pulp and Paper
- Petrochemical Processing
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