• Ideal for observing indoor air quality in crowded public spaces with potentially high levels of CO₂ such as offices, factories, classrooms, hospitals and hotels
• Large display continually monitors air temperature, RH and CO₂
• Min/max CO₂ levels recall and provides visual alarms for maximum CO₂ threshold
• Automatic Baseline Calibration (ABC) and maintenance free NDIR (non-dispersive infrared) CO₂ sensor ensure long-term accuracy, stability and reliability
• Supplied with AC adaptor and will stand on a desk-top or wall mount

  Specifications:

• Temperature Range: -10 to 50°C
• Temperature Resolution:0.1°C & F
• Temperature Accuracy: ±0.6°C (-10 to 50°C), otherwise ±1.2°C, ±2.5°F
• RH Range: 10% to 90%
• RH Resolution: 0.1%
• RH Accuracy:±5% (@25°C & 10 to 99%RH) otherwise ±7%
• CO2 Range: 0 to 9999 ppm
• CO2 Resolution: 1 ppm
• CO2 Accuracy: ±75ppm +5% of rdg (0 to 2000 ppm)
• Dimensions: 4½" × 4¼" × 1" (108 × 115 × 25 mm)
• Weight: 6 oz (170 g)

Demand for quality indoor air continues to increase as we are spending more time indoors than ever before. IAQ issues can be complex due to the diversity of indoor environments. Poor air quality may cause tiredness, inability to concentrate, and even illness (i.e., Sick Building Syndrome). To address problems caused by poor IAQ, national and local governments have developed guidelines for acceptable indoor air quality. Assessing indoor air quality in buildings begins with IAQ investigations using professional grade measuring instruments as the first step in creating a healthier work environment.