Extech CO240 - Indoor Air Quality Meter - Handheld CO₂, Temperature, Humidity, Dew Point & Wet Bulb Monitor with Audible Alarm

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Product description
- Comprehensive Air Quality Monitoring - Measures CO2 concentration, air temperature, relative humidity, dew point, and wet bulb temperature for complete indoor environmental assessment.
- Maintenance-Free NDIR Sensor - Utilizes a non-dispersive infrared (NDIR) sensor for accurate and reliable CO2 measurements without the need for regular calibration.
- Audible CO2 Alarm - Features a user-settable high CO2 alarm with an audible beeper to alert users when concentration levels exceed safe thresholds.
- Data Logging Capabilities - Includes software and USB cable for real-time data logging to a PC, enabling detailed analysis and record-keeping.
- Portable and User-Friendly - Compact design with a large LCD display, tripod mount, and includes six AAA batteries, USB cable, PC software, and a soft carrying case for convenience.
- Dual display of Carbon Dioxide (CO2) concentrations and Relative Humidity, Temperature, Dew Point, or Wet Bulb
- Maintenance free NDIR (non-dispersive infrared) CO2 sensor
- Audible CO2 warning alarm when concentration level exceeds high user set point
- Min/Max CO2 value recall function
- Data Hold, Auto Power Off (with disable), Low battery indicator
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