- 25/02/2026
- Vaisala
Vaisala Polaris process refractometer product family
Light your way beyond tomorrow
Ignite the full potential of your process control with the pioneering optical inline process refractometer Vaisala Polaris. The robust instruments optimize manufacturing processes, enhance productivity, and save resources, energy, and time in various industries and hundreds of applications.
Uplift your horizons and step into the bright new future of reliability with Vaisala Polaris process refractometers.
Success measured in a flash
Vaisala Polaris process refractometer family sheds new light on what is possible in liquid measurements. The robust instrument family provides reliable and maintenance-free liquid concentration measurements.
Vaisala Polaris process refractometers
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Vaisala Polaris PR53AC and ACEX Sanitary Compact Process Refractometers for ordinary and explosive areas For food, beverage, dairy, brewery, and pharma industries Measure Brix and other concentrations inline accurately and in real time. Pipeline installation. |
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Vaisala Polaris PR53AP and APEX Sanitary Probe Process Refractometers for ordinary and explosive areas For food and beverage industries, and OEMs Measure Brix and other concentrations inline accurately and in real time. Tank, kettle, cooker, and vessel installation. |
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Vaisala Polaris PR53GC and GCEX Compact Process Refractometers for ordinary and explosive areas For chemical industry Measure concentrations of acids, alkaline solutions, alcohols, hydrocarbons, solvents and various other solutions. Pipeline installation. |
| Vaisala Polaris PR53GP and GPEX Probe Process Refractometers for ordinary and explosive areas
For chemical, sugar, sweetener, petrochemical industry. Measure Brix, sugars, acids, alkaline solutions, alcohols, hydrocarbons, solvents, and various other solutions’ concentrations. Pipeline and tank installation. |
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Vaisala Polaris PR53SD Process Refractometer For pulp & paper industry Measures Total Dissolved Solids and other concentrations. Installation positions include fiberline, brown stock washing, evaporation, black liquor firing, slaker, and lime operations. |
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Vaisala K-PATENTS Digital Divert Control System DD-23 For pulp industry, recovery boiler safety Includes two Polaris PR53SD process refractometers in the main black liquor line, two indicating transmitters, and a divert control unit in an integrated panel. |
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Vaisala Polaris PR53M and MEX PTFE-Body Process Refractometers for ordinary and explosive areas For chemical and semiconductor industries Measures hydrochloric acid (HCl), sodium hydroxide, sodium chloride, sulphuric acid, hydrofluoric acid, and other aggressive chemicals directly inline. Installation to ½ inch process line. |
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Vaisala Polaris PR53W Valve-Body Process Refractometers for ordinary and explosive areas For chemical, metal, and mining industries Measures sulphuric acid, hydrochloric acid (HCl), sodium hydroxide, hydrofluoric acid, and other aggressive chemicals directly inline. Installation in large production pipelines. |
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Vaisala K-PATENTS PR-33-S Process Refractometer
For semiconductor industry Measures CMP slurries’ concentration and bulk chemicals in semiconductor manufacturing. Suitable for installation in pipelines. |
| Indigo520
For process refractometers Provides data logging, wash control, settings and measurement parameters, and service updates. When combined with Vaisala Polaris, it offers compelling features for all users and is a standard power couple for applications and installation positions with a prism wash system. |
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Indigo80 for Vaisala Polaris process refractometers
Discover the unmatched combination of Vaisala Indigo80 and Polaris process refractometers. With the Indigo80, a screen on the go, configure and calibrate probes without downtime, log data from individual probes for speedy diagnosis, and identify potential maintenance needs easily.
If it is a liquid, we measure it
Vaisala’s process refractometer can practically measure any liquid concentration inline, real-time.
Processes include evaporation, distillation, fermentation, blending, drying, wet-mixing, interface detection, dilution, extraction and more. Let’s connect to discuss further!
Source: https://www.vaisala.com/en/industrial-measurements/products/liquid-concentration













