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Extech CO250 Portable Indoor Air Quality CO2 Meter

This Portable Indoor Air Quality CO2 Meter measures Carbon Dioxide (C02), Temperature, Humidity, Dew Point, and Wet Bulb.

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Extech CO250 Portable Indoor Air Quality CO2 Meter
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  • Extech CO250 Portable Indoor Air Quality CO2 Meter

This Portable Indoor Air Quality CO2 Meter measures Carbon Dioxide (C02), Temperature, Humidity, Dew Point, and Wet Bulb. 

Checks for Carbon Dioxide (CO2) concentrations and calculates statistical weighted averages of TWA (8 hour time weighted average) and STEL (15 minute short term exposure limit). User programmable audible alarm. Data acquisition software and cable included to record and document CO2, Humidity and Temperature data.

Features:

  • 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 5000ppm
    • Temperature: -14 to 140°F (-10 to 60°C)
    • Humidity: 0.0 to 99.9%
  • Complete with software and cable, 4 AA batteries, and carrying case.
Function Range Resolution Accuracy
CO2 0 to 9999ppm 1ppm ±75 ppm or ±5% of reading
Temperature 23 to 122°F (‐5°C to 50°C) 0.1° ±1.5°C/2.7°F
Humidity 0.1 to 90.0% 0.1% ±5%
Display LCD with backlighting
Sampling Interval: 2 seconds
Overload Indication: "‐OL‐"
Sensor Type CO2: NDIR (non‐dispersive infrared) technology 
Operating Conditions ‐5°C to 50 °C (23 oF to 122 oF) at < 90 % RH 
Storage Conditions ‐5°C to 50 °C (23 oF to 122 oF) at < 90 % RH
Power Supply 110V~220V AC, output 6.0V DC ≥ 500mA (supplied)
Dimensions / Weight 117x102x102mm (4.6x4x4"); 204g (7.2 oz.)