à¤Ã×èͧÇÑ´¡êÒ«¤ÒÃìºÍ¹ä´ÍÍ¡ä«´ì Carbon Dioxide CO2 Meter > à¤Ã×èͧÇÑ´¡êÒ«¤ÒÃìºÍ¹ä´ÍÍ¡ä«´ì CO100: Desktop Indoor Air Quality CO2 Monitorà¤Ã×èͧÇÑ´¡êÒ«¤ÒÃìºÍ¹ä´ÍÍ¡ä«´ì CO100: Desktop Indoor Air Quality CO2 Monitor Measures Carbon Dioxide (CO2), Air Temperature and Humidity Features: Checks for Carbon Dioxide (CO2) concentrations Maintenance free NDIR (non-dispersive infrared) CO2 sensor Indoor Air Quality displayed in ppm with Good (0 to 800ppm), Normal (800 to 1200ppm), Poor (>1200ppm) indication User programmable Visible and Audible CO2 warning alarm Measurement ranges: CO2: 0 to 9,999ppm Temperature: 14 to 140°F (-10 to 60°C) Humidity: 0.1 to 99.9%RH Displays Year, Month, Date, and Time Max/Min CO2 value recall function Automatic Baseline Calibration or manual calibration in fresh air For complete specs please download the product datasheet (not available for some accessories) à¤Ã×èͧÇÑ´¡êÒ«¤ÒÃìºÍ¹ä´ÍÍ¡ä«´ì Carbon Dioxide CO2 Meter > à¤Ã×èͧÇÑ´¡êÒ«¤ÒÃìºÍ¹ä´ÍÍ¡ä«´ì CO100: Desktop Indoor Air Quality CO2