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. Calculates combustion efficiency. Pump driven for fast response. Will not shut off if 15 ppm CO is present for increased safety. Ten selectable fuels. Built- in differential thermometer. Store function to save up to 50 readings. Store function to save up to 50 readings. Carbon monoxide (CO) measurement: 0 to 10000 ppm Range, 1 ppm Resolution, +/- 5ppm or 5 percent of reading whichever is greater Accuracy. Oxygen (O2) measurement: 0 to 25 percent Range, 0.1 percent Resolution, +/-0.3 percent Accuracy. Carbon dioxide (CO2): 0 to 25 percent Range, 0.1 percent Resolution. Temperature measurement: -40 to 1472 degree F, or -40 to 800 degree C Range, 1 degree F or degree C Resolution, Accuracy (K-type) +/-0.3 percent, +/-2 degree F or +/-1 degree C. Draft/pressure measurement: Selectable Ranges mBar, kPa, and inH2O, Ranges -150 mBar to +150 mBar, -15 kPa to +15 kPa, -60 inH2O to +60 in H20, Resolution 0.001 inH2O, Accuracy +/-0/5 percent fsd. Gross/net efficiency: 0 to 100 percent Range, 0.1 percent Resolution. CO/CO2 Ratio: 0 to 0.999 Range, 0.001 Resolution. Operating temperature: 14 to 122 degree F (-10 to 50 degree C). Battery type: 1.5V AA (3). Selectable fuels: natural gas, LPG, light oil, heavy oil, bituminous coal, anthracite coal, coke, butane, wood, bagasse. Display type: backlit 3 line LCD. Data storage: 50 locations. Print capability: via optional IR printer (A740). Date and time function: 24 hour real time clock. Conformity: BS7927 (and the draft BS7967). RoHS Compliant. Measures 90mm width by 200mm height by 60mm depth.