Provides quick, accurate information to assess key indoor air quality (IAQ) parameters. Simultaneously displays CO2, CO, temperature and humidity measurements. Calculates dew point, wet bulb and percent outside air. Large graphic display. Displays up to 5 measurements. On-screen messages and instructions. Supports 12 different languages. One instrument with multiple plug-in probe options including VOC’s and air velocity. Store up to 39 days of data collected at one-minute log intervals. TRAKPRO™ data analysis software provided for data logging, analysis and documenting results. Bluetooth communications for transferring data or remote polling. Includes instrument, hard carrying case, (4) alkaline batteries, USB cable, TRAKPRO software, operation and service manual, AC adapter, calibration certificate and 2-year warranty.