| Measures Carbon Dioxide (CO2), Air Temperature and Humidity with user adjustable high/low alarms and choice of datalogging model with memory 999 points |
| White Color LED Dot Matrix Display |
| Checks for Carbon Dioxide (CO2) concentrations (0 to 9,999ppm) and displays Temperature (14 to 140°F / -10 to 60°C) and Relative Humidity (0.1 to 99.9%) readings |
| NDIR (non-dispersive infrared) CO2 sensor |
| Indoor Air Quality displayed in ppm with Good, Normal, Poor indication |
| Displays Year, Month, Date, and Time |
| Max/Min CO2 value recall function |
