The Extech EA80 EasyView Indoor Air Quality Meter and Datalogger provides a comprehensive solution for measuring carbon dioxide levels in indoor environments. Utilizing a maintenance-free dual wavelength NDIR sensor, the EA80 can detect CO2 concentrations from 0 to 6,000 ppm. Designed for both automated and manual data logging, it stores up to 20,000 sets of continuous readings or 99 manually recorded sets, offering flexible monitoring options for varying needs.Its user-friendly functionality includes features such as data hold, maximum and minimum readings with time stamps, and built-in alarm alerts. The EA80 also supports easy calibration in fresh air environments, includes auto power-off for energy efficiency, and offers measurements for temperature and humidity in addition to CO2.What's Included: 6 - AAA Batteries 1 - Windows 95/98/NT/2000/Me/XP Compatible Software 1 - RS-232 Interface Cable Features CO2 Monitoring CapabilityChecks for carbon dioxide concentrations to help ensure healthy indoor air quality.Maintenance-Free NDIR SensorEquipped with a dual wavelength non-dispersive infrared sensor that requires no upkeep.Wide Measurement RangeMeasures CO2 from 0 to 6,000 ppm, temperatures from -4 to 140°F (-20 to 60°C), and humidity from 10 to 95% RH.Flexible Data LoggingSupports both continuous logging of up to 20,000 sets and manual logging of 99 sets for detailed record-keeping.Convenient Measurement ToolsFeatures data hold, max/min with time stamp, alarm, and auto power off to streamline usage.Easy CalibrationSimple calibration in fresh air environments ensures reliable and accurate readings. What's Included Included with Your Purchase: 6 - AAA Batteries 1 - Windows 95/98/NT/2000/Me/XP Compatible Software 1 - RS-232 Interface Cable Specifications CO2 Measurement Range: 0 to 6,000 ppm Temperature Measurement Range: -4 to 140°F (-20 to 60°C) Humidity Range: 10 to 95% RH Data Logging Capacity: 20,000 sets (continuous), 99 sets (manual) Sensor Type: Dual wavelength NDIR Power Supply: 6 AAA batteries Interface: RS-232 Software Compatibility: Windows 95/98/NT/2000/Me/XP Alarm Function: Yes Data Hold: Yes Auto Power Off: Yes Product Condition: New UPC: 793950411803 Model Number: EA80 FAQ Q: What type of sensor does the EA80 use to detect CO2?A: It uses a maintenance-free dual wavelength non-dispersive infrared (NDIR) sensor.Q: How much data can the EA80 store?A: It can continuously log up to 20,000 sets of data or manually log 99 sets.Q: Can the device measure anything besides CO2?A: Yes, it also measures temperature and relative humidity.Q: Is calibration complicated?A: No, it features easy calibration in fresh air conditions for convenience. Resources Documents: Extech EA80 Datasheet