Description
Photometer for dissolved oxygen HI97732C is a portable, battery-powered instrument for determining gaseous oxygen (O2) dissolved in aqueous solution. Dissolved oxygen is a key parameter in aquatic systems, supporting aerobic metabolism and influencing inorganic chemical reactions; solubility decreases as water temperature rises. The meter measures from 0,0 to 10,0 mg/L (ppm) with 0,1 mg/L resolution and accuracy of ±0,4 mg/L ±3 % of reading at 25 °C. An advanced optical system uses an LED and narrow-band interference filter at 466 nm for accurate, repeatable readings; sealed optics keep out dust, dirt and water, and cuvettes seat in a fixed position every time. The method is based on the azide-modified Winkler procedure from Standard Methods for the Examination of Water and Wastewater, 23rd Edition. From manufacturer Hanna Instruments, the kit arrives in a transport case with CAL CHECK™ standards (NIST-traceable performance checks), two capped cuvettes, plastic inserts, scissors, cleaning cloth, three 1,5 V batteries, quality certificate and manual. Tutorial mode, GLP calibration recall, storage of the last 50 readings, built-in reaction timer, error messages and auto power-off support routine laboratory and field work under IP67 conditions.
This article is part of Dissolved oxygen & multiparameter meters, in pH & electrochemistry.
Key features
- Pack size: 1 pc
- Measurement range: 0,0 to 10,0 mg/L (ppm)
- Resolution: 0,1 mg/L
- Accuracy at 25 °C: ±0,4 mg/L ±3 % of reading
- Wavelength: 466 nm
- Method: azide-modified Winkler
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Questions about Portable Photometer for Dissolved oxygen with CAL Check standards
What is this article?
Portable Photometer for Dissolved oxygen with CAL Check standards is the article on this page. Luminix Health distributes Hanna Instruments for laboratory use. It sits in Dissolved oxygen & multiparameter meters, inside pH & electrochemistry, in Lab instruments.
A dissolved-oxygen meter reads oxygen in a liquid, optically or with a Clark cell. A multiparameter meter adds pH, conductivity or both on one instrument. The sensor cap or the membrane is the consumable. A reading in air and a reading in water are different calibrations.
A pH meter is a voltmeter on a glass electrode. The voltage tracks hydrogen-ion activity, and the electrode is converted to pH only after it is adjusted with buffers of known value. Conductivity measures how well a solution carries a current, which for dilute salts tracks concentration. Dissolved oxygen and titration are further electrodes on the same idea: a sensor, a standard, and a reading that is only as fresh as the calibration. Buffer values and chemical identity sit on PubChem. Accreditation of the calibration laboratory is the field of BELAC and EURAMET.
Which category should I open next?
The category is pH & electrochemistry. The sub-category is Dissolved oxygen & multiparameter meters. The catalogue is Lab instruments.
Shelves beside this one are pH electrodes & sensors, pH meters, Conductivity meters & cells, Titrators & electrochemistry systems and pH & electrochemistry accessories.
What should I check before I order?
When this page shows a safety data sheet, use that manufacturer file. Hazard text does not belong in the sales description. For a pack size, a grade or a certificate that is not on the page, send a quote request or contact the team.
How does ordering and shipping work?
Luminix Health distributes this article from the heart of Europe. Articles in stock ship within 2–5 business days. Standard delivery is free from €250 excl. VAT. Cold-chain goods and dangerous goods under ADR are never included in that free delivery. The terms are in the Shipping Policy. The full brand index is on shop by brand. Who we are is on about us.
Which other categories should I open?
The seven catalogues are Labware, Lab chemicals, Lab instruments, Lab consumables, Chromatography equipment, Lab safety equipment and Life Science & Microbiology.

