High-precision digital CO2, temperature and humidity meter for reliable indoor air monitoring Key benefits Monitor air quality accurately: high-precision sensors provide dependable CO2, temperature and humidity readings so you can make informed ventilation and comfort decisions. Improve health and comfort: spot elevated CO2 and inappropriate humidity levels that can cause drowsiness, poor concentration, mold growth or discomfort. Easy to read and use: clear LCD display shows current CO2, temperature and humidity at a glance; compact, portable and user-friendly for everyday use. What makes this product stand out Multifunctional: combines CO2 monitoring with temperature and humidity measurement in one device. Portable and compact: small form factor makes it easy to move between rooms, carry in a bag, or place on a desk or shelf. Accurate performance: designed for precise indoor air readings to help maintain a clean and safe environment. Who should use it Families wanting to maintain healthy indoor air for children and older adults. Office workers and managers monitoring ventilation and comfort in shared workspaces. People with respiratory sensitivities or allergies who need to track air quality and humidity. Practical applications (use scenarios) Home: place it in the living room or nursery to check CO2 and humidity levels and decide when to open windows or run ventilation. School or office: monitor classrooms and meeting rooms to detect rising CO2 and improve air circulation for better focus and comfort. Vehicle or small enclosed spaces: carry it in a car or place it in small rooms to verify air exchange and reduce stuffiness during extended occupancy. Key attributes Functions: measures CO2, temperature and humidity. Display: LCD for clear, immediate readings. Size and portability: small, lightweight and easy to position or carry. Performance: high-precision readings suitable for everyday indoor air quality monitoring. Simple, practical, and reliable tool to help maintain healthier indoor environments for home, work and travel.