About This Multifaceted Air Quality Monitoring - Measures carbon dioxide (0-9,999 ppm with 1 ppm resolution), air temperature (14 - 140 °F / -10 - 60 °C), relative humidity (0.1 - 99.9 %), dew point, and wet-bulb temperature Advanced CO2 Detection with NDIR Sensor - Equipped with a maintenance-free non‑dispersive infrared (NDIR) CO₂ sensor and six facial icons that visually represent indoor air quality levels TWA & STEL Calculations - Automatically calculates Time Weighted Average (TWA over 8 hours) and Short-Term Exposure Limit (STEL over 15 minutes) for detailed exposure tracking Memory & Alarm Features - Includes storage for up to 99 manually logged readings (with date/time), plus high/low CO2 alarms and automatic baseline calibration for accurate long-term use Ready for Use - Compact desktop design with AC adapter included; backed by a 2-year warranty when purchased through FLIR Overview Brand : Extech Style : CO220 Color : White/Green Item Weight : 0.2 kg Alarm : Audible Global Trade Identification Number : 00793950502204 Unit Count : 1 Count Number of Items : 1 Item Highlight : CO2 0-9999 ppm, NDIR, dew point, wet bulb, TWA/STEL, 99-point memory, audible alarm, AC adapter Manufacturer : FLIR Systems
