Detail CO2 & CO& TEMP.& RH% Combo 77597
* Low cost portable meter checking indoor air quality * Big LCD w/ backlight to display 6 parameters: CO2 , CO, temperature, humidity, dew point, wet bulb temperature * Designed with NDIR ( non-dispersive infrared) waveguide technology CO2 sensor * Manual calibration is available for CO2/ CO/ RH% * 99 points manual & up to 32000 points auto logging memory * Audible alarm ( ~ 80db) threshold setting * Max , min, average, hold functions included * Mini USB output to PC for data analysis
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