E Instruments BTU1500-Oil Combustion Analyzer with Printer and Oil-kit is a next generation combustion analyzer with features like full color graphics and Bluetooth communication to PC. E Instruments BTU1500-Oil is also designed with a built-in printer for immediate on-site results and measures O2, CO, CO2, Efficiency, Excess Air, Draft, Pressure, and Temperature, and includes an Oil-kit featuring an Oil Smoke Pump, Smoke Filter Papers, and Comparison Chart.