HI-764113 Replacement Optical Dissolved Oxygen Probe with protective sleeve for HI-98198

• Digital, weighted probe
• No membranes
• No electrolytes
• No oxygen consumption
• No flow dependence or minimum flow rate
• Fast and stable readings
• Not affected by sunlight
• Factory calibrated “Smart Cap”
• Smart Caps last one year
• Minimal maintenance

How the probe works

The Hanna HI-764113 optical DO sensing probe is based on the principle of fluorescence quenching. The sensing method features an immobilised pT based luminophore that is excited by the light of a blue LED and emits a red light. Dissolved oxygen quenches this excitation.

The major components of the probe include a blue LED for excitation, a red LED that is used as a reference light, and a photodetector. The Smart Cap™ is locked in place on the optical probe and includes the immobilised 0₂ sensitive luminophore with rugged insoluble black oxygen permeable protective layer.

The sensor provides accurate DO measurements over long periods of time without the need for frequent calibration.