à¤Ã×èͧÇÑ´¡êÒ«¤ÒÃìºÍ¹ä´ÍÍ¡ä«´ì Carbon Dioxide CO2 Meter > à¤Ã×èͧÇÑ´¡êÒ«¤ÒÃìºÍ¹ä´ÍÍ¡ä«´ì CO210: Desktop Indoor Air Quality CO2 Monitor/Datalogger à¤Ã×èͧÇÑ´¡êÒ«¤ÒÃìºÍ¹ä´ÍÍ¡ä«´ì CO210: Desktop Indoor Air Quality CO2 Monitor/Datalogger Datalogs up to 5333 points (Carbon Dioxide, Air Temperature or Humidity) Features: Checks for Carbon Dioxide (CO2) concentrations Maintenance free NDIR (non-dispersive infrared) CO2 sensor Indoor Air Quality displayed in ppm with Good (380 to 420ppm), Normal (1000ppm) indication User programmable High/Low Visible and Audible CO2 warning alarms 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 Complete with Universal AC adaptor, software and cable For complete specs please download the product datasheet (not available for some accessories) àª×èÍÁµèͪشá¨é§àµ×͹ SMS Alarm áÅÐ ¤Çº¤ØÁÍØ»¡Ã³ì·Ò§ SMS ä´é («×éÍà¾ÔèÁ) SMS Alarm á¨é§àµ×͹ Carbon dioxide Meter CO2 Meter CO2 Monitor CO210 Extech Gas Leak Detector Gas Meter à¤Ã×èͧµÃǨ¨Ñºá¡êÊÃÑèÇ à¤Ã×èͧÇÑ´ CO2 à¤Ã×èͧÇÑ´¡êÒ«¤ÒÃìºÍ¹ä´ÍÍ¡ä«´ì à¤Ã×èͧÇÑ´¤Ø³ÀÒ¾ÍÒ¡ÒÈ à¤Ã×èͧÇÑ´á¡êÊ