Extech CO250 Portable Indoor Air Quality CO₂ Meter

The Extech CO250 is a portable handheld meter designed to measure carbon dioxide (CO₂), temperature, humidity, dew point, and wet bulb temperature. It calculates time-weighted averages (TWA) and short-term exposure limits (STEL), offering a comprehensive solution for indoor air quality monitoring in environments such as offices, classrooms, and greenhouses.

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Description

The Extech CO250 is engineered for professionals who require accurate and real-time monitoring of indoor air quality parameters. Utilizing a maintenance-free non-dispersive infrared (NDIR) sensor, it measures CO₂ concentrations up to 5,000 ppm with a resolution of 1 ppm. In addition to CO₂, the device measures temperature from 14 to 140°F (-10 to 60°C), relative humidity from 0.0 to 99.9%, and calculates dew point and wet bulb temperatures, providing a comprehensive assessment of indoor environmental conditions.

The device features a user-programmable audible alarm to alert users when CO₂ levels exceed preset thresholds, enhancing safety in monitored areas. The backlit triple LCD display allows for simultaneous viewing of multiple parameters, facilitating efficient data analysis. For data logging and documentation, the CO250 includes data acquisition software and a cable, enabling users to record and document CO₂, humidity, and temperature data on a PC.

Designed for portability and ease of use, the CO250 operates on four AA batteries and comes with a carrying case for convenient transport. Its compact dimensions and lightweight design make it suitable for field applications, while its comprehensive feature set ensures reliable indoor air quality monitoring.

 

 

Features

  • CO₂ Measurement Range: 0 to 5,000 ppm with 1 ppm resolution.
  • Temperature Measurement: 14 to 140°F (-10 to 60°C) with 0.1°F/°C resolution.
  • Humidity Measurement: 0.0 to 99.9% RH with 0.1% resolution.
  • Dew Point and Wet Bulb Calculations: Provides additional environmental parameters.
  • TWA and STEL Calculations: Computes 8-hour time-weighted average and 15-minute short-term exposure limit.
  • Maintenance-Free NDIR Sensor: Ensures long-term stability and accuracy.
  • User-Programmable Audible Alarm: Alerts when CO₂ levels exceed preset thresholds.
  • Backlit Triple LCD Display: Simultaneously displays multiple parameters for easy monitoring.
  • Data Acquisition Software and Cable Included: Facilitates data recording and documentation on a PC.
  • Portable Design: Operates on four AA batteries and includes a carrying case for convenience.

 

Includes

  • Software
  • Cable
  • 4 AA batteries
  • Carrying case

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