| CO2 | |
| Measuring range | 0 ... 9999 ppm | 
| Measurement accuracy   | 
                                   ±70 ppm ±5 % of measuring range | 
| Resolution | 1 ppm | 
| Temperature | |
| Measuring range | -10 ... 100 °C / 14 ... 212 °F | 
| Resolution | 0.1 °C | 
| Accuracy | ±1.5 °C | 
| rel. Humidity | |
| Measuring range | 0 ... 99.9 % r.H. | 
| Resolution | 0.1 % r.H. | 
| Accuracy | ±3 % | 
| General | |
| Traffic light function | 
                                    Green:
                                    0 ... 599 ppm Yellow: 600 ... 1199 ppm Red: 1200 ... 9999 ppm  | 
                               
| Repeatability | <±0.5 % | 
| Response time | 10 seconds | 
| Operating conditions | 0 ... 50 °C, 32 ... 122 °F, 0 ... 90 % r.H. not condensing | 
| Storage conditions | -30 ... 70 °C, -22 ... 158 °F, 0 ... 90 % r.H. not condensing | 
| Power supply | via power pack 9 VDC, 350 mA | 
| Dimensions | 388 x 288 x 43 mm / 15.2 x 11.3 x 1.7" | 
| Weight | ca. 2420 g / 85 oz |