Flue Gas Analyzer LED 5V 3 4000ppm

Flue Gas Analyzer Digital Display Screen Type LED Maximum Carbon Monoxide Measured 4 000 ppm Maximum Oxygen Measured 21 Percent v/v Minimum Oxygen Measured 0 Percent v/v Selectable Fuel Options Bioheat Fueloil #2 Natural Gas Propane Wood 20 Percent M Minimum Carbon Monoxide Measured 0 ppm Maximum Combustion Efficiency 120 Percent Minimum Combustion Efficiency 0 Percent Maximum Excess Air Measured 99 Percent Minimum Excess Air Measured 0 Percent