P A R G A R A N

FA EN
Extech CO250 Portable Indoor Air Quality CO2 Meter

Extech | Indoor Air Quality Tools

Extech CO250 Portable Indoor Air Quality CO2 Meter

MPN / Part No: CO250
Price updated: Sep 24, 2026

This device provides accurate measurement of CO2 concentration, temperature, and humidity in indoor environments with high precision and a range of 0 to 5000 ppm. Its portable design and user-friendly interface make it an ideal tool for occupational health engineers and building managers to monitor and improve air quality.

Sell this product as a vendor?

List your inventory and pricing to receive direct B2B orders.

Extech CO250 Indoor Air Quality Meter is a professional and portable measuring device designed for the precise assessment of carbon dioxide (CO2) concentration, temperature, and relative humidity in enclosed environments.

This tool utilizes infrared sensor technology (NDIR) for measuring CO2, ensuring high accuracy and stability over time.

The CO2 measurement range of 0 to 5000 ppm, temperature range of 14 to 140 degrees Fahrenheit (-10 to 60 degrees Celsius), and humidity range of 0 to 99.9% RH cover a wide spectrum of environmental conditions.

This device is considered an ideal option for safety engineers, HVAC technicians, and building managers seeking to optimize ventilation and ensure a healthy working environment.

The ergonomic design and large LCD display of this device make data reading easy in any lighting conditions. Data Hold functionality and automatic power-off feature for battery conservation are practical characteristics of this product.

Utilizing 9V alkaline batteries allows for continuous use without the need for complicated charging. This meter helps organizations maintain indoor air quality standards and prevents problems like fatigue and decreased productivity caused by inadequate ventilation.

 

Key Features of the Extech CO250 Indoor Air Quality Meter

  • Simultaneous measurement of CO2 concentration, temperature, and relative humidity
  • CO2 measurement range of 0 to 5000 ppm with NDIR technology
  • Large LCD display for easy data readability
  • Data Hold feature for recording values
  • Automatic power-off for battery savings
  • Portable and lightweight design for on-site use
  • Wide operating temperature range from -10 to 60 degrees Celsius

 

Technical Specifications

Feature Value
Model CO250
Brand Extech
CO2 Measurement Range 0 to 5000 ppm
CO2 Measurement Accuracy ±5% of reading or ±50 ppm (whichever is greater)
Temperature Measurement Range 14 to 140°F (-10 to 60°C)
Temperature Measurement Accuracy ±2°F (±1°C)
Humidity Measurement Range 0 to 99.9% RH
Humidity Measurement Accuracy ±3% RH
CO2 Sensor Type Non-dispersive Infrared (NDIR)
Power Supply 9V Battery
Additional Features Data Hold, Automatic Power Off

 

Frequently Asked Questions

Is this device suitable for measuring CO2 in office and school environments?

Yes, the Extech CO250 meter is ideal for monitoring air quality in crowded environments such as offices, schools, and commercial spaces due to its high accuracy and appropriate measurement range.

Does this device require periodic calibration?

NDIR sensors generally have high stability, but to ensure long-term accuracy, it is recommended to perform periodic calibration according to the manufacturer's instructions or industry standards.

Does the Extech CO250 Indoor Air Quality Meter have the capability to connect to a computer for data logging?

No, the CO250 model is a handheld and portable device and lacks the capability to connect data to a computer or data logging software. Data is displayed in real-time on the screen.

 

Conclusion

The Extech CO250 Indoor Air Quality Meter combines precision, reliability, and ease of use in a portable device.

This product, with its capability to accurately measure CO2, temperature, and humidity, is an essential tool for anyone who cares about workplace health and adherence to hygiene standards. By choosing this model, you ensure that you have accurate data for managerial and technical decision-making.

Pargaran Value Guarantees

  • 100% Genuine OEM equipment & datasheet compliance
  • Official commercial VAT & proforma documentation
  • Free pre-purchase engineering consultation
  • Secure industrial packaging & expedited freight
Extech

Extech

United States

Extech is one of the most reputable international brands in the field of test and measurement equipm...

View All Products from this Brand

Related Products

Pargaran AI Assistant

Online & Ready

Sign In to Pargaran

Enter your mobile number to sign in or create an account.

By continuing, you agree to our Terms & Policies.

Verify Mobile Number

Enter the 5-digit verification code

Shopping Cart ()

Your cart is empty!

Explore our catalog to add industrial products to your cart.

Explore Products
Subtotal:
Total:

Your cart contains items requiring price quotation.