EXTECH CO250 便携式室内空气质量二氧化碳计

Carbon Dioxide (CO2) 0 to 5,000ppm / 1ppm
Temperature 14 to 140°F (-10 to 60°C) / 0.1°F/°C
Humidity 0.0 to 99.9% / 0.1%
Wet Bulb and Dew Point Calculated
Dimensions 7.9x2.7x2.3” (200x70x57mm)
Weight 6.7 oz. (190g)


• Checks for Carbon Dioxide (CO2) concentrations
• Calculates statistical weighted averages of TWA (8 hour time
weighted average) and STEL (15 minute short term exposure limit)
• Maintenance free NDIR (non-dispersive infrared) CO2 sensor
• Measurement ranges:
CO2: 0 to 5,000ppm
Temperature: 14 to 140°F (-10 to 60°C)
Humidity: 0.0 to 99.9%
• User programmable audible alarm
• Backlit triple LCD display
• Built-in RS-232 interface for capturing readings on PC
• Data acquisition software and cable included to record
and document CO2, Humidity and Temperature data
• Optional 33% and 75% RH calibration bottles (RH300-CAL)
• Complete with software and cable, 4 AA batteries,
and carrying case
• Check air quality in schools, office buildings,
greenhouses, hospitals and anywhere that high
levels of carbon dioxide are generated



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  • 交易简单化