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Achieve highly accurate dissolved oxygen measurements in diverse aquatic samples with the HI6421 (optical opdo®) and HI6421P (polarographic) advanced benchtop meters. Featuring a modern, large touchscreen interface, these instruments deliver reliable performance for fresh and saltwater analysis.
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Unlock precise dissolved oxygen measurements with the HI6421, featuring Hanna's innovative HI7641133 optical DO probe (opdo®). This advanced technology relies on the principle of fluorescence quenching to deliver accurate and stable readings.
Experience effortless probe management with our user-friendly Smart Caps (HI764113-1). These intelligent caps securely lock onto the probe and automatically transmit pre-loaded calibration coefficients, streamlining your setup process. The robust, insoluble black oxygen permeable protective layer safeguards the immobilized oxygen-sensitive luminophore.
The probe's ingenious design compensates for the natural aging of optical components by utilizing a reference signal. This ensures reliable dissolved oxygen measurements over extended periods, minimizing the need for frequent calibrations and maximizing your efficiency.
The HI6421P model is equipped with the HI764833 polarographic probe, a slim and versatile solution for a wide spectrum of dissolved oxygen measurements. Its integrated thermistor diligently compensates for temperature fluctuations, ensuring data integrity.
The probe's slender profile allows for convenient measurements in various containers, including test tubes and Biological Oxygen Demand (BOD) bottles. Its robust construction features a dependable platinum cathode and Ag/AgCl anode assembly, delivering rapid and accurate readings that are independent of flow.
Achieve unparalleled accuracy with automatic compensation for barometric pressure and temperature. Salinity adjustments are easily made by manually inputting the concentration of the water sample. The built-in barometer handles pressure compensation automatically, or you can enter values manually in your preferred units: mmHg, mbar, kPa, inHg, psi, atm.
For precise DO calibration, the HI7040L bi-component zero oxygen solution is included, allowing you to quickly and accurately calibrate to 0% oxygen concentration right from the start.
Hanna's Smart Caps are equipped with a built-in RFID reader, enabling the storage of critical data such as the manufacture date and first-use date, enhancing traceability and ensuring data integrity.
Each Smart Cap offers a one-year lifespan from the initial date of use. The meter automatically tracks this countdown and provides timely on-screen reminders as the expiration approaches, ensuring you always have a reliable sensor.
An integrated alignment key ensures that your Smart Cap is fitted correctly every single time, eliminating guesswork and ensuring optimal performance with every measurement.
At Blue Tiger Scientific, we are proud to distribute authentic Hanna Instruments products. The following policies apply to all purchases made through our store.
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