Indoor Air Quality Meter

Indoor Air Quality Meter, Carbon Dioxide Concentration 0 to 30,000 ppm, Temp. Range -4 to 140 Degrees F, Relative Humidity Range 0 to 100 Percent, Humidity Accuracy 10 to 90 Percent RH: +/-3 Percent less than 10 Percent & greater than 90 Percent RH: +/-5 Percent, Accuracy 0 to 5000ppm: +/-(75ppm +3 Percent rdg.), 5001 to 30,000ppm: +/-(150ppm +5 Percent rdg.), Resolution 0.1 Percent, 0.1 Degrees Degrees, CO2 1 ppm, Auto Power Off Yes, Low Battery Indicator Yes, Sensor Life 2 yr, Power Source 9V