AZ77535 Portable CO2 Gas Analyzer Temperature Humidity Meter Digital Carbon Dioxide Tester

* 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* PC connect via USB interfaceSpecification of 77535 AZ CO2 Meter:Model:77535CO2 Range:0~9999 ppm (5001~9999 ppm out of scale range)CO2 Resolution:1 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 Time:30 SecondsAir Temperature Range:-10~60℃, 14~140℉Air Temperature Resolution:0.1℃, 0.1℉Air Temperature Accuracy:±0.6℃, ±0.9℉Air Temperature Response Time:＜2 mins (90% step change)Humidity Range:0.1~99.9% RHHumidity Resolution:0.1% RHHumidity Accuracy:±3%RH (at 25℃, 10~90%RH); others ±5%RHHumidity Response Time:＜10 mins (90% step change)LCD Size:44(L) * 26(W) mmMeter Size:205(L) * 70(W) * 56(H) mmOperating Temperature:0~50℃Operating RH%:0~95% RH (avoid condensation)Storage Temperature:-20~50℃Storage RH%:0~90% RH (avoid condensation)Power Supply:AA * 4 PCSBattery life:＞ 24 hours (Alkaline Battery)Weight:~200gStandard Package:Meter, Manual, Hard Carry Case

• 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