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Prei Instrumentation (Pty) Ltd

Turtle Tough

Intelligently designed to perform in extreme applications. Turtle Tough’s patented and advanced technology will change the way you experience liquid analysis.

The world’s toughest liquid analysis systems

Prei Instrumentation’s customers choose Turtle Tough sensors because they conduct liquid analytics in the toughest conditions in the world. They operate in mining, precious metal and ore refinement and extreme chemical processes, where most sensors are unable to provide accuracy or longevity.
Deterioration in the accuracy of sensors creates costly wastage as process control is affected. Additionally, in these extreme environments many sensors require intensive maintenance and frequent calibration, which are time consuming and costly processes.
Prei Instrumentation’s customers choose Turtle Tough because we deliver on our promises: providing substantial cost savings through better sensor performance.

Not only do we save them money, but we simplify the human factors required to keep the process measurement systems running effectively.

Improved measurement accuracy and process control

Turtle Tough sensors are designed to provide accurate measurement for significantly longer than any other sensor. Custom made to provide lower rates of expiration, slower accuracy degradation and reduced fouling, our sensors are reported to provide massive savings to our customers from better accuracy and tighter process control.

Maintenance free

All Turtle Tough pH, ORP, Conductivity and Ion Selective measurement sensors have no serviceable components. This means completely maintenance free operation – for the entire life of the sensor, except for routine cleaning and calibration. A truly superior sensor must be impervious to ingress. Turtle Tough sensors are solid state and totally sealed for life. Not only will they resist process contamination but they are completely maintenance free. There is no gel or electrolyte to be refilled, no reference to replace and no o-rings or seals to be compromised or replenished.

Longest life in the industry

Turtle Tough sensors boast significantly extended replacement intervals, reducing the time and manpower required to replace and install sensors.
Rather than a one size fits all approach, each sensor is optimised for its intended process use, with various salt mixtures and polymer formulations. Our proprietary pH glass and ORP elements provide unmatched performance in harsh environments. By utilising solid-state conductive reference junction polymers we are able to achieve accurate measurement while resisting process contamination into the reference system.
This ability to maintain high ionic conductivity while resisting aggressive gas intrusion is what makes our sensors outlast virtually all competitors in difficult process control conditions.

Intelligently designed for extreme applications

Turtle Tough’s patented and advanced technology will revolutionise the way you experience liquid analysis. Our entire range of pH, ORP, Conductivity, Dissolved Oxygen and Ion Specific sensors are designed to be physically and chemically superior providing long life and high performance in the world’s toughest environments. Through decades of experience suppling sensors into the world’s toughest applications, we have developed sensors that are optimised for high hydrofluoric acid, saturated sodium, high sulphide, organic solvents, high cyanidation, ultrapure water, high temperature and slurry and viscous applications.

Turtle tough analysers

The TT-MA Analysers have been designed specifically to interface with our extreme Turtle Tough sensors to provide the maximum possible service life to the sensor. The unique modular design enables you to create a full multi-parameter analyser with any combination of different analytical modules including pH, ORP, Dissolved Oxygen, Conductivity and Ion Specific. Functional modules can also be added including digital MODBUS, Data-logging and Relays. The TT-MA analyser family are the most economical full feature industrial analysers available in the marketplace, often at a fraction of the cost of other analysers.
Turtle Tough sensors and Analysers are sold and serviced by Prei Instrumentation who have more than 30 years’ experience in your Liquid analysis applications especially in tough applications.


Phone number: +27 (0) 11 867 5001
Email address: sales@prei.co.za
Website: www.prei.co.za