Sper Scientific* Indoor Air Quality Meter - Each

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). 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./average, hold and a computer interface. NDIR (non-dispersive infrared) technology ensures long-term accuracy, stability and reliability. Comes in a hard carrying case with 4 AA batteries.

Specifications:
• CO₂ range: 0 to 5000 ppm
• CO₂ resolution: 1 ppm
• CO₂ accuracy: +/-30 ppm +/-5% rdg
• Air temperature range: -10 to 60°C (14 to 140°F)
• Air temperature accuracy: 0.6°C (0.9°F)
• RH range: 0 to 100%
• RH accuracy: +/-3% between 10 and 90%, +/-5% otherwise
• Dew point range: -13.3 to 60°C (8 to 140°F)
• Wet bulb range: -73.4 to 60°C (-100 to 140°F)
• Air Temperature, RH, Dew Point, and Wet Bulb resolution: 0.1°
• Dimensions: 8¹/₂ x 2³/₄ x 2¹/₄ in. (216 x 70 x 57 mm)
• Weight: 9.6 oz (272 g)
• 5 year warranty, CE, RoHS
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