E Instruments E500 [E500-2] Combustion Analyzer with O2, CO, CO2, Combustion Efficiency

E Instruments E500-2 Combustion Analyzer with O2, CO, CO2, Combustion Efficiency. Maximize Combustion Efficiency of Residential and Light-Commercial Boilers, Water Heaters and Furnaces.

Combustion Analyzer with O2, CO, CO2, Combustion Efficiency, Heat Losses, Draft, Pressure, Excess Air, Temperature, 12 inch Probe, 5 Ft Hose, Vinyl Carrying Case, AC Charger, Calculations for High Efficiency and Condensing Systems. Adds downloadable Wireless Bluetooth and Smartphone Apps for Android and Apple