The same measurement parameters can also be used to test air from 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 Adapter (800059), USB computer cable and downloadable software. Please click the software download link above.
| Range | Resolution | Accuracy | |
| Temperature | -10 to 50°C 14 to 122°F |
0.1°C/F | ±1°C (±2°F) |
| RH | 10% to 90% | 0.1% | ±5% (@25°C) |
| CO2 | 0 to 9999 ppm | 1 ppm | ±75 ppm +5% of rdg (0 to 5000 ppm) |