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Technical details
Measuring range CO2 | 400 ... 5000 ppm |
Resolution | 1 ppm |
Accuracy | ± (5% + 50 ppm) between 400 ... 2000 ppm |
and an atmospheric pressure of 1013 mbar | |
Measuring range temperature | -10.0 ... 50.0°C / 14 ... 122°F |
Resolution | 0.1°C / 0.18°F |
Accuracy | ± 1°C / 1.8°F |
(can be influenced by its own waste heat) | |
Measuring range humidity | 0 ... 99% rh |
Resolution | 1% rh |
Accuracy | ± (5% at 25°C / 77°F) between 10 ... 90% rh |
Sensor | NDIR principle |
ABC | Automatic baseline correction |
Audio alarm | Buzzer |
Visual alarm | Red backlight |
Display | 3 inch LC display |
battery indicator | Four-level display |
display frequency | 3 seconds |
Automatic shutdown | turns itself off after 2 hours |
Backlight | White backlight |
Working conditions | 0 ... 50°C / 32 ... 122°F, 0 ... 85% rh |
Storage conditions | -20 ... 60°C / -4 ... 140°F, 0 ... 95% rh |
Power supply | Built-in 3.7V DC battery |
Weight | 195 g / < 1 lb |
Dimensions | 75 x 55 x 130 mm / 3 x 2.2 x 5.1 in |
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