Combustion Checker
Combustion Checker, Digital Display Screen Type LCD, Maximum Oxygen Measured 25 Percent v/v, Minimum Oxygen Measured 0 Percent v/v, Selectable Fuel Options Natural Gas, Oil #2, Propane, Maximum Operating Temperature 122 Degrees F, Minimum Operating Temperature 32 Degrees F, Maximum Stack Temperature Measured 600 Degrees F, Minimum Stack Temperature Measured 90 Degrees F, Calibration Certificate Type Not Certified.