Sensors & Transducers


Differential pH sensors

October 2004 Sensors & Transducers Security Services & Risk Management

The compact 25,4 mm pHD sensors from PREI Instrumentation, use three measuring electrodes compared with conventional pH sensors, which use only two electrodes. This superior technology provides increased accuracy, reduced reference junction fouling and virtually eliminates ground loops, and thereby results in greater reliability with less downtime and maintenance.

PREI's motto is 'No application is too tough for us to handle' and the company is willing to replace any Hach differential sensor that fails due to defects in materials or workmanship within one year from date of shipment. These pHD sensors are available in PEEK and Ryton body material to resist aggressive process liquids, and in various mounting styles to suit many applications.

For more information contact Steve Herbst, PREI Instrumentation, 011 448 2172, [email protected], www.eprei.co.za



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