Description: CO2 Meter features:* Design with NDIR (Non-Dispersive Infrared) wave guide technology sensor* Triple displays of CO2 level, temperature and humidity* Data output to PC every 2 seconds for on-line analysis* Display 8 hrs TWA value (time-weighted average) & 15 minutes STEL value (short-term exposure limit)* Housing design surrounds with rails to help air ventilation for quick and accurate response* Easy manual calibration on CO2 and humidity (with AZ salt bottle)* Dual display 2 parameters simultaneously: CO2, temperature* Audible carbon dioxide level warning alarm* Big LCD display with high resolution* Back light for working in dark area* Battery and adaptor power supply ( not included )* PC connect via USB interface (option) CO2 Range0~9999 ppm (5001~9999 ppm out of scale range)CO2 Resolution1 ppmCO2 Accuracy±30 ppm ±5% of reading (0~5000 ppm), other range are not specifiedCO2 Response Time＜30 Seconds (90% step change)CO2 Warm-up Time30 SecondsAir Temperature Range-10~60℃, 14~140℉Air Temperature Resolution0.1℃, 0.1℉Air Temperature Accuracy±0.6℃, ±0.9℉Air Temperature Response Time＜2 mins (90% step change)Humidity Range0.1~99.9% RHHumidity Resolution0.1% RHHumidity Accuracy±3%RH (at 25℃, 10~90%RH); others ±5%RHHumidity Response Time＜10 mins (90% step change)LCD Size44(L) * 26(W) mmMeter Size205(L) * 70(W) * 56(H) mmOperating Temperature0~50℃Operating RH%0~95% RH (avoid condensation)Storage Temperature-20~50℃Storage RH%0~90% RH (avoid condensation)Power SupplyAA * 4 PCSBattery life＞ 24 hours (Alkaline Battery)Weight~200g
