Three-function handheld CO2 meter - All-in-one measurement: measures carbon dioxide content, temperature and humidity at the same time for comprehensive indoor air monitoring. - Easy to read display: dynamic two-line LCD shows all three metrics simultaneously, allowing quick status checks without switching modes. - Battery efficient: auto shut-off preserves battery life and keeps the meter ready when needed, reducing the need for frequent charging. - Practical performance: portable, handheld design suited for a variety of spaces and scenarios, delivering reliable environmental readings. Use scenarios - Home: monitor air quality and comfort to maintain a healthy living environment. - Office or classroom: track CO2 levels and climate conditions to support productivity and comfort. - Small labs or workshops: observe temperature, humidity and CO2 to support processes and equipment performance.