Direct replacement sensors

The SD7000CD and SD7000CD-ORP are a cost-effective and chemically-resistant direct replacement option for Hach/GLI and Water Analytics/Aquametrix analogue 5-wire pH and ORP sensor models. These differential pH and ORP sensors are ideally suited for industrial and municipal wastewater treatment and neutralization; metal finishing and plating, wet fume scrubbers; chemical processing; and other online water quality and process applications.

SD7000 Series sensors are highly accurate, with three electrodes instead of the two found in conventional combination pH and ORP sensors. Solution pH is measured differentially with process and inner reference (surrounded by a known concentrated pH 7 buffer) electrodes, compared to a third ground electrode.