Instrumentation (Pty) Ltd

Prei Instrumentation represents the most technological advanced, leading brand companies in the fields below, making it a successful leader in the process, measurement and control industry in South Africa.
Prei Instrumentation is a leading supplier and technical support specialist for: on-line, portable and laboratory analyzers for the potable, waste and industrial water markets as well as rotating machinery monitoring, protection, prediction and control: vibration, anti-surge, speed control for turbines, compressors and pumps.
We also supply specialised instrumentation for general industry to research and development projects, gas detection, current transducers, gauss meters, hydrometers, thermometers, controllers, encoders and primary element transmitters.

Prei Instrumentation is a level 2 BB-EEE certified company, with a 51% BBE-EEE shareholding.


Other Products

Guassmeters, Hydrometers, Thermometers and Current Transducers.

Industrial Control

Industrial controllers, indicators, counters, encoders, transducers, load cells and accelerometers for all Industrial applications.

Gas Detection

Portable and fixed mount toxic and combustible cas monitors for air quality and safety.

Rotating Machinery

Monitoring, Protection, Prediction and Control, Vibration, Anti-Surge and Speed Control.

Power/Steam Generation

Advanced online analyzers specifically designed for the continuous measurement and determination of contaminants in boiler water systems.

Food and Beverage

Smart, simple and reliable Water quality analytical and control solutions, specially for Sanitation and Microbiological activity.


Prei Instrumentation is a leading supplier and technical support specialist for the On-line, Portable, Waste and Industrial water markets