* CO2 Detection Range: 400ppm-5000ppm, tolerance: ± (50ppm + 5% read value)
* Sensor Start Preheating Time: 150s
* Resolution: 1ppm
* Temperature Measuring Range: 0°C~50°C, tolerance: ±1°C, resolution: 1°C
* Humidity Measuring Range: 20%~99%, tolerance: ±5%, resolution: 1%
* MAX/MIN Records: CO2/Temperature/Humidity
* Storage Temperature: -20°C~60°C
* Storage Humidity: 20%~80%
* Other Function: 
  Comfort Indication
  Time/Alarm
  Adjustable backlight brightness
  °C/°F Switch
* Product Net Weight: 140g