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Handheld Indoor Air Quality Monitor - Temp, Rh, CO2 - IAQ55 Poor indoor air quality is considered unhealthy because it causes tiredness, loss of ability to concentrate, and even illness(ex. Sick Building Syndrome). IAQ monitoring and survey, especially on CO2 level and air ventilation become widely applied in public areas such as offices, classrooms, factories, hospitals and hotels. It is also suggested in regulations of industrial hygiene in some countries. This professional-grade portable testing tool offers super accurate display of CO2 level, temperature and humidity. It also diplays dewpoint temp and web bulb temp. It is ideal for Indoor Air Quality diagnostics. SUPCO's IAQ Series measure Carbon Dioxide (CO2), Temperature and Humidity with Dew Point and Wet Bulb. Ideal for air quality diagnosis, they can be useful in identifying sick building syndrome due to high levels of CO2. Equipped with a triple LCD Display and programmable alarms. FEATURES: Non-Dispersive Infrared (NDIR) Sensor Visible/ Audible (80db) CO2 Alarm Large Triple Function LCD Display Min./ Max., Average Recall Alarm Output Relay PC Connect via RS232 Interface Long Time Drift Compensation Non-Dispersive Infrared (NDIR) Sensor TWA (Time-Weighted Average) 8 HRS STEL (Short-term exposure limit) 15 Minutes Uses 3 AA Batteries (included) Alarm Output Relay Backlight Display Option Auto Shutoff 2 Year Warranty SPECIFICATIONS: CO2 RANGE: 0-2000ppm, Accuracy +50ppm / +5% Reading / 2001-9999 Accuracy (not specified) RESOLUTION: 1 ppm PRESSURE DEPENDENCE: +1.6% reading per kPa from normal pressure, 100kPa TEMPERATURE RANGE: 14°F-140°F (-10.0-60.0°C) RESOLUTION: 0.1°F / 0.1°C ACCURACY: +0.9°F / +0.6°C HUMIDITY RANGE: 0.0-99% RESOLUTION: .1% ACCURACY: +3% (10-90%) +5% (others) WARM-UP: 30 Seconds

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