"1.Analyzer and probe leak test (allows you to check analyzer and probe for leaks) 2.Combustion and Emission calculations 3.Flue Gas and Ambient Air Temperature measurement 4.Differential Temperature Measurement 5.Differential Pressure Measurement and Draft Measurement 6.Modern, slim line enclosure with fixing magnets 7.Super bright, color 3.5” TFT display with LED backlight (customizable and zoom function) " Visit - https://mrulab.com/collections/combustion-analyzer/products/ampro-2000-analyzer-set-including-o2-co-no-no2-and-co2-1-without-ir-printer