Carbon Monoxide Analyzer Carbon Monoxide Measurement Range (PPM) 0 to 2000 Temp Range -4 Degrees to 1202 Degrees F Accuracy +/-5 Percent of Reading or +/-10 ppm Resolution 1 ppm Display Monochrome Backlit LCD Auto Power Off Yes Low Battery Indicator Yes Sensor Life 4 yr. Data Hold Yes Data Storage Yes Power Source (4) AA Batteries Special Features Real Time Standard and Graphic Trending