Poor air quality may cause tiredness, inability to concentrate, and even illness (i.e., Sick Building Syndrome).

• Ideal for measuring indoor air quality in crowded public spaces with potentially high levels of CO2 (carbon dioxide) such as offices, factories, classrooms, hospitals, hotels and HVAC equipment.

• Recalls the maximum and minimum CO2 readings and has a user selectable audible maximum alarm.

• Automatic Baseline Calibration (ABC) and maintenance free NDIR (non-dispersive infrared) CO2 sensor ensure long-term accuracy, stability and reliability.

• Calibrates to air and has a hold function.

• Records up to 32,000 data points of temperature, RH and CO2 that can be downloaded using a USB cable and software (included).

• Comes complete with tripod screw, soft carrying case, 6 AAA batteries, AC Adaptor, USB computer cable and software.

• 5 year warranty

Specifications:

- Temperature Range: -10.0 to 50.0°C
Temperature Resolution: 0.1°C/F

- Temperature Accuracy: ±1°C (±2°F)
RH Range: 10% to 90%

• RH Resolution: 0.1%

- RH Accuracy: ±5% (@25°C)
CO2 Range: 0 to 9999 ppm

• CO2 Resolution: 1 ppm

• COS Accuracy: ±75ppm +5% of rdg (0 to 5000 ppm)

• Dimensions: 8¼" × 2¼" × 2" (210 × 57 × 51 mm)

• Weight: 7 oz (198 g)