Market profile: dissolved oxygen meters.
Although titration "drop count" is adequate for conducting individual measurements of DO concentrations, the method is inadequate for users who need to run multiple and frequent tests. Dissolved oxygen meters, which are sold in both benchtop and handheld field variations, function much like electrochemical cells: as oxygen comes in contact with the instrument's sensor, a chemical reaction produces an electrical charge, which is then converted into milligrams of gas per liter of water, the equivalent of parts per million (ppm).
Within the worldwide electrochemistry market, DO meters make up approximately one-tenth of the total instrument demand. Ion selective and pH meters, both potentiometric techniques, constitute over half of the market and the number of traits shipped far surpasses the demand for other related products.
While some users opt for dedicated DO meters, many models combine dissolved oxygen capabilities with other electrochemistry measurements. For example, YSI, one of the largest DO meter vendors, offers the YSI 556 Multiprobe System, a handheld instrument that can simultaneously calculate dissolved oxygen, pH, conductivity, temperature and oxidation-reduction potential I (ORD). The YSI 550A, a more economical model that tests only for dissolved oxygen, costs less than half as much as the 556. Hach, a subsidiary of Danaher, sells, among its other DO meters, the HQ10 and HQ20, which feature an LDO probe. Unlike traditional sensors that use an anode, cathode and electrolyte to measure electrical current, the LDO records the effect of oxygen molecules on a luminescent surface to calculate oxygen content. Thermo Electron offers an array of dedicated and multisensor DO meters incorporating easy calibration technologies--a factor that can affect the accuracy of readings--into its instruments.
Last year, Nova Analytics made inroads into the DO meter market, I acquiring a controlling stake in WTW (see IBO 6/30/03) and purchasing the electrochemistry product line of Coming Life Sciences (see IBO 4/15/03).
While not the largest segment of the electrochemistry market, dissolved oxygen meters have nonetheless demonstrated faster growth than other technologies. IBO estimates the DO instrument market to grow at more than 5% a year, spurred in part by new environmental and pollution regulations.
Dissolved Oxygen Meters At A Glance:
Leading Suppliers * Danaher * Thermo Electron * YSI
Largest Markets * Academic * Agriculture and Food * Environmental * Government
Instrument Cost * $600 to $2,500
|Printer friendly Cite/link Email Feedback|
|Publication:||Instrument Business Outlook|
|Date:||Jan 31, 2004|
|Previous Article:||Photonics West 2004.|
|Next Article:||The bottom line.|