Avante global services supplies the fluke co-220 carbon monoxide meter for quick and accurate measurements of co levels with a single compact instrument. This carbon monoxide meter responds very quickly to ambient changes in carbon monoxide concentration without the use of a pump. This is a handheld meter that can measure carbon monoxide from 1 to1000 ppm with 1 ppm resolution and â± 3% uncertainty. A large, backlit lcd display shows co levels from 0 to 1000 ppm. The max hold function stores and display the maximum co levels. An audible alert warns the user of changing levels. And an aspirator kit is used to collect flue samples up to 370â° for measurement with the co-220. This is a perfect instrument for technicians and other professionals who need to measure co levels within spaces such as industrial environments, commercial buildings or residential dwellings where accumulation of combustion gas is possible.