Air Quality Meter- Monitor Gas Karbon Dioksida HT2000Product Code: HT2000Digital CO2 Monitor/Gas AnalyzerDescription:Measures Carbon Dioxide (CO2) concentration, Temperature, Humidity, Dew point temperature and Wet bulb temperatureHigh Carbon Dioxide level indoor will cause tiredness, lack of concentration, sick building syndromeCarbon Dioxide meter also has important function in agriculture, such as vegetable greenhouseCarbon Dioxide Meter is widely used in factory, workshop, green house, clean room, industry and agriculture, wine bar, hotel, hospital, shop market, airport, railway station, entertainment hall and movie theaterKey Features:Large LCD simultaneously display and log Carbon Dioxide Level, Temperature, Relative Humidity, Calendar (Y/M/D) and Time (Clock)12700 data logging memoryCO2 Level AlertStable NDIR sensor for Carbon Dioxide concentrationNDIR (Non-Dispersive Infrared) WAVEGUIDE TECHNOLOGY WITH ABC (Automatic back-ground Calibration)High and low threshold settingRecall Max and Min readingLong time drift compensationComes with power adapterTechnical Specs:Large LCE Display: 3.5” (8.9cm) LCD display with backlightData Logger Mode: Key stat/stop, Immediately, Schedule, Real-time & Roll-overCarbon Dioxide Range: 0~9999 (out of scale)Accuracy: ±50ppm ±5% rdg (0~2000)Response Time: 10secTemperature Range: -10.0~70.0C (14~158F)Resolution: 0.1C/FAccuracy: ±0.6C/±0.9F (0~50C/32~122F), others±1.2CHumidity Range: 0.1~99.9%Resolution: 0.1%Accuracy: ±3% (10~90%)Logging Memory: 40000Operating Condition: 0~50C, 0~95%RHStorage Condition: -20~60C, 0~99%RHEnvironments with ABC onStorage Temp: -40~70C (-40~158F)Power Supply: AA Batteries or AC AdapterPackage Included:1X Carbon Dioxide Meter1X USB Cable1X Charge Adapter (AC 100~240V 50/60Hz)1X CD1X English User Manual