TPI analyzers feature quick and simple set up. Fast purge and the ability to perform fuel selection during start up enable tests to be performed quickly without requiring extra set-up time after initial startup. TPI analyzers also use the last selected fuel as the default setting. This feature prevents the need to perform fuel selection every time the analyzer is turned on. Built-in differential manometer with 0.001" H2O resolution. Calculates combustion efficiency. Pump driven for fast response. Will not shut off if 15 ppm CO is present for increased safety. Optional A740 IR. printer available for hard copies of test results. Built-in differential thermometer. Store function to save up to 50 readings. Push on fittings for fast and easy use. Ten selectable fuels. Operating temperature range: 14 to 122 degree F. Charger input voltage: 115V or 230V, 50/60 Hz AC. Fuels: natural gas, LPG, light oil, heavy oil, bituminous coal, anthracite coal, coke, butane, wood, bagasse. Units of pressure: mbar, kPa and inH2O. Display: 3 Line Backlit LCD with annunciators. Data storage: 50 sets of readings. Oxygen gases range: 0-25 percent, Resolution: 0.1 percent, Accuracy: +/- 0.3 percent. Carbon monoxide range: 0-10,000 ppm, Resolution: 1 ppm, Accuracy: +/- 5 ppm or 5 percent. Carbon dioxide range: 0-25 percent, Resolution. 0.1 percent, Accuracy: Calculated. CO/CO2 ratio range: 0-0.999, Resolution: 0.001, Accuracy: Calculated. Combustion Efficiency: 0-100 percent, Resolution: 0.1 percent, Accuracy: Calculated. Pressure measurement range: mbar, kPa and inH2O, -120 inH2O to 120 inH2O, Resolution: 0.001 inH2O, Accuracy: +/- 0.5 percent fsd. Temperature measurement range: -58 to 1832 degree F (-50 to 1000 degree C), Resolution: 1 degree F (1 degree C), Accuracy: +/- (0.3 percent of rdg + 2 degree F) or +/- (0.3 percent of rdg + 1 degree C). Conformity: BS7927 (and the draft BS7967). RoHS Compliant. Measures 3-1/2" width by 7-51/64" height by 2-25/64" depth.