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Extech
Extech CO250 Portable Indoor Air Quality CO2 Meter
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Parámetros clave
Measuring range
CO2 0–5,000 ppm; temperature 14–140°F (−10 to 60°C); humidity 0.0–99.9% RH; dew point and wet bulb calculated
Supply
4 × AA (1.5 V) batteries
Approvals
CE
Sensor type
Maintenance-free NDIR CO2 sensor
Notes
Optional RH300-CAL 33%/75% RH calibration bottles
Resolution
CO2 1 ppm; temperature 0.1°F/°C; humidity 0.1% RH
| Parámetro | Valor |
|---|---|
| Measuring range | CO2 0–5,000 ppm; temperature 14–140°F (−10 to 60°C); humidity 0.0–99.9% RH; dew point and wet bulb calculated |
| Supply | 4 × AA (1.5 V) batteries |
| Approvals | CE |
| Sensor type | Maintenance-free NDIR CO2 sensor |
| Notes | Optional RH300-CAL 33%/75% RH calibration bottles |
| Resolution | CO2 1 ppm; temperature 0.1°F/°C; humidity 0.1% RH |
| Functions | TWA (8 h) and STEL (15 min) weighted averages; user-programmable audible alarm; backlit triple LCD; RS-232 PC datalogging |
| Dimensions | 7.9 × 2.7 × 2.3 in (200 × 70 × 57 mm) |
| Weight | 6.7 oz (190 g) |
| Warranty | 2 years |