Monitor Indoor Air Quality IAQ in public spaces with potentially high levels of CO2 carbon dioxide. Poor air quality may cause tiredness, inability to concentrate, and even illness i.e., Sick Building Syndrome. This instrument is ideal for monitoring indoor air quality in crowded public spaces with potentially high levels of CO2 carbon dioxide such as offices, factories, classrooms, hospitals and hotels. The same measurement parameters can also be used to test air from HVAC equipment. Backlit simultaneous display of CO2 level, humidity and air temperature, or the user may choose a rotating display of dew point and wet bulb temperature instead of air temperature. Also calculates TWA Time Weighted Average and STEL Short-Term Exposure Limit. Simple user calibration of CO2 and RH. Features audible CO2 threshold alarms, min/max/avg, hold and a computer interface. NDIR non-dispersive infrared technology ensures long-term accuracy, stability and reliability. In order to connect this model to a computer to stream data, you will need the USB Cable 840054 and Data Acquisition Software 840052. Comes in a hard carrying case with 4 AA batteries. Uses optional AC Adapter 840027. CO2 Humidity Dew Point Air Temperature Wet Bulb Temperature Dimensions: 81⁄2 × 23⁄4 × 21⁄4 216 × 70 × 57 mmWeight: 9.6 oz 272 g Specifications Range Resolution Accuracy Air Temperature 14 to 140 degrees F-10 to 60 degrees C 0.1 0.9 degrees F0.6 degrees C RH 0 to 100% ±3% 10 to 90%±5% otherwise Dew Point 8 to 140 degrees F-13.3 to 60 degrees C Wet Bulb -100 to 140 degrees F-73.4 to 60 degrees C CO2 0 to 5000 ppm 1 ppm ±30 ppm ±5% rdg Standards Carbon Dioxide CO2 Levels and Exposure Effects 250 to 350 ppm Background normal outdoor air level. 350 to 1,000 ppm Typical level found in occupied spaces with good air exchange. 1,000 to 2,000 ppm Level associated with complaints of drowsiness and poor air. 2,000 to 5,000 ppm Level associated with headaches, sleepiness, and stagnant, stale, stuffy air.Poor concentration, loss of attention, increased heart rateand slight nausea may also be present. > 5,000 ppm Exposure may lead to serious oxygen deprivation resulting inpermanent brain damage, coma and even death. Downloads Instruction Manual Product Brochure Comparison Chart Comparison Chart
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