Portable Indoor Air Quality CO2 Meter Measures Carbon Dioxide (C02) , Temperature, And calculates statistical 8 hour and 15 minute time weighted averages Humidity, Dew Point, and Wet Bulb Features: • Checks for Carbon Dioxide (CO2) concentrations • Calculates statistical weighted averages of TWA (8 hour time weighted average) and STEL (15 minute short term exposure limit) • Maintenance free NDIR (non-dispersive infrared) CO2 sensor • Measurement ranges: CO2: 0 to 5,000ppm Temperature: 14 to 140°F (-10 to 60°C) Humidity: 0.0 to 99.9% • User programmable audible alarm • Backlit triple LCD display • Built-in RS-232 interface for capturing readings on PC • Data acquisition software and cable included to record and document CO2, Humidity and Temperature data • Optional 33% and 75% RH calibration bottles (RH300-CAL) • Complete with software and cable, 4 AA batteries, and carrying case Applications: • Check air quality in schools, office buildings, greenhouses, hospitals and anywhere that high levels of carbon dioxide are generated Measure CO2 level in office buildings to check the air quality of conference rooms insuring proper ventilation. Ordering Information: Specifications Carbon Dioxide (CO2) Temperature Humidity Wet Bulb and Dew Point Dimensions Weight Range 0 to 5,000ppm 14 to 140°F (-10 to 60°C) 0.0 to 99.9% Calculated 7.9x2.7x2.3” (200x70x57mm) 6.7 oz. (190g) Resolution 1ppm 0.1°F/°C 0.1% CO250 ....................Portable Indoor Air Quality CO2 Meter RH300-CAL ............33% and 75% RH Calibration Kit www.extech.com Specifications subject to change without notice. 6/24/09 - R1 Copyright © 2008 Extech Instruments Corporation. All rights reserved including the right of reproduction in whole or in part in any form.