Key facts
- Brand
- EXTECH
- Model
- CO250
- Category
- Other Electronics
- Documents
- 2
- Languages
- EN
- Last added
- 2023-10-18
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Extech CO250 CO2 Meter User's Guide
The Extech CO250 is a multi-function meter designed for indoor air quality (IAQ) diagnosis. It measures carbon dioxide (CO2) levels, air temperature, dew point, wet bulb temperature, and humidity. The device features an LCD display with backlight, a keypad for navigation, and an RS232 port for PC connectivity. It is powered by four AA batteries or an AC adapter and includes an audible alarm for high CO2 concentrations.
Read onlineExtech CO250 specifications
| CO2 Range | 0 to 5000ppm |
|---|---|
| CO2 Accuracy | ±50ppm±5%rdg |
| Temperature Range | -10 to 60°C |
| Humidity Range | 0.0 to 99.9% |
| Power Supply | 4 x 1.5V 'AA' batteries or AC adaptor |
| Battery Life | approx. 24 hours |
| Dimensions | 200x70x57mm |
All Extech CO250 documents by type
Day-to-day operation, settings and troubleshooting. Start here if the product is already set up.
Questions answered in these manuals
What is the factory calibration setting for CO2?
The meter is calibrated to a standard 400ppm CO2 concentration at the factory.
How long does the warm-up period take?
The meter performs a 30 second countdown for meter warm up at power up.
How long does the meter take to warm up?
The meter performs a 30 second countdown for meter warm up at power up.
What is the alarm limit range?
The CO2 alarm threshold can be set from 100 to 9900ppm.