This competitively-priced, single-channel dissolved oxygen meter is easy to set up and use while providing reliable, accurate DO measurement for water analysis and general laboratory applications. Easy to use 3-button function. Bright LCD display with ready indication. The rugged meter displays DO concentration or percent DO Saturation and offers a full complement of GLP-related features. It offers enhanced stability indicators, salinity correction and automatic barometric pressure compensation-as well as SMART STABILITY™ and SMART AVERAGING™. A unique feature allows meter and probe calibration to a Winkler Titration for those needing to correlate direct Biological Oxygen Demand (BOD) readings to Winkler methods. You can record and store up to 10 setup parameters and calibrations-a valuable feature for multi-user labs. Download additional methods and software updates via the Web. IP54 dustproof and splash proof; uses polarographic DO probe; mini DIN locking probe connector; advanced self-tests on meter operation, self-diagnostics; 200 point datalogger which is downloadable to printer or computer via an optional RS232 or USB interface accessory; CE, CSA, UL, TÜV and FCC Class A limits approved; universal power adapter for worldwide operation; three-year replacement warranty. Complete application kits including the meter, electrode, standards, solutions and accessories are available for your convenience. Meter kit includes: 3-Star DO Benchtop Meter; 081010 DO Probe (3m); Overflow Funnel w/ stir box; Probe Service Kit; DO cal sleeve, A series probes; Benchtop Electrode Stand. Specifications: Range, mg/L (ppm): 0.00 to 90.00, Accuracy: ±0.02 mg/L, % Saturation: 0.0 to 600, Temperature Range: -5 to 105° C, Salinity Factor: 0 to 45 ppt, Barometric Pressure: 450 to 850 mm/Hg.