Gas Detector Sensor Gas Detected Carbon Dioxide Measurement Range 0 to 50 000 ppm Compatible Detector Model/Series MultiRAE Sensor Type Infrared Compatible Detector Manufacturer Part Number AreaRAE Pro/Plus MultiRAE ToxiRAE Pro Sensor Life 2 yr Series MultiRAE Sub-Brand RAE Resolution 250 ppm 500 ppm Operating Temperature - Maximum 122 Degrees F Operating Temperature - Minimum -4 Degrees F Chemical Formula CO2