Measures carbon dioxide, temperature, and humidity simultaneously for a complete view of indoor air quality. Compact device with a colorful backlit display that visually indicates CO2 concentration changes at a glance, powered by a builtin 1200 mAh battery rechargeable via USB. Ideal for families who prioritize maintaining indoor air in homes or offices. Suitable for use in kitchens, living rooms, bedrooms, or on the go, ensuring you are constantly aware of your environment's air quality. Key benefits Simultaneous measurement of CO2, temperature, and humidity for a clear picture of indoor air conditions Colorful backlit display that visually signals CO2 changes for quick assessment USBrechargeable 1200 mAh battery supports portable, cord use Compact and portable design suitable for home, office, or travel Provides actionable data to help you make ventilation and comfort decisions Use scenarios In the kitchen during cooking to monitor CO2 and humidity and maintain comfortable air In the bedroom to track nighttime air quality and temperature for better sleep In a small office or living room for daily monitoring, or while traveling to stay aware of air conditions