E Instruments BTU900 [BTU900-C] 3-Gas Combustion, Emissions & Safety Analyzer, O₂, CO, CO₂, CxHy

E Instruments BTU900-C Combustion Analyzer NOx Base Kit is the updated BTU900 high-efficiency combustion analyzer that is a combustion efficiency meter (O2, CO, CO2, CxHy, excess air, efficiency) as well as a carbon monoxide (CO) leak detector, a differential pressure manometer, draft meter, and thermometer. E Instruments BTU900-C also features unbreakable metal hose connections, PC software with auto-saving features, and now is designed with Bluetooth communication for use with an optional Bluetooth printer for instant on-the-job test results.