• Simultaneously measure and display PM2.5, CO2, air temperature, relative humidity and health index
• Large LED display readings can easily be seen across the room
• Two-side tri-color LED bars visually indicate PM2.5 and CO2 levels
• Programmable data sampling rate plus Hi/Lo limits with visual and audible alarm
• Store up to 12,000 records with the ability to export data in CSV format

The IAQ320 is designed to help you continuously monitor indoor air quality conditions, ideal for use in commercial buildings, hospitals, schools, manufacturing facilities, and cleanrooms. This meter accurately measures levels of particulate matter, CO2, IAQ health index, air temperature, and relative humidity so you can maintain a healthy work environment. With a 10-inch display, visible and audible alarms, and the ability to store up to 12,000 records, the IAQ320 is a simple and convenient tool for managing indoor air quality.

• In addition to monitoring PM2.5 (particulate matter, or dust) and CO2 (carbon dioxide) concentration, the IAQ320 also monitors ambient Temperature and Relative Humidity, and calculates ‘Health Index’.
• Tri-color LED bars clearly show you the condition of PM2.5 and CO2 levels indicating safe (green), warning (yellow), and alarm (red)
• Mount the meter on the wall or use the tilt stand on a desktop
• Health indexes of 1 to 7 correlate with Good to Extremely Hazardous, respectively.
• NDIR (non-dispersive infrared) waveguide CO2 concentration measurement method
• Automatic background CO2 calibration (ABC) provides long-term drift compensation

1. CO2 concentration (0 to 9999 ppm)

2. Ambient temperature 14 to 140°F (10 to 60°C)

3. Tricolor light bar for CO2 (green: low, yellow: moderate, red: alarm)

4. Health index (1 to 7) based on 24-hour average

5. PM2.5 dust concentration (0 to 999 μg/m3)

6. Tricolor light bar for PM2.5

7. Relative humidity (0.1 to 99.9%)

8. Start / Stop data logger button

9. Beeper mute and plus (+) button

10. Data log record LED indicator

11. Alarm LED indicator

12. Settings button