CO2 Carbon Dioxide Detector, 4-in-1 Indoor Air Quality Monitor, Portable CO2 Monitor, Tester for Carbon Dioxide, Temperature and Relative Humidity, CO2 Meter with Alarm, for Grow Tents, Homes, Cars

?【Compact Indoor CO2 Monitor】This sleek and portable CO2 monitor features a hollow back design for easy carrying and airflow. Its large, colorful LCD digital screen makes it simple for anyone to read the CO2 levels, temperature, and humidity., ?【Essential for Healthy Air Quality】Monitoring carbon dioxide levels is crucial for indoor air quality. While CO2 at low levels is not harmful, high concentrations can impair human breathing and, in severe cases, be life-threatening., ?【Advanced Sensor Technology】Our mini CO2 meter utilizes high-precision sensor technology for accurate and quick detection of carbon dioxide levels., ?【Sensitive Semiconductor Sensor】The 4-in-1 air quality monitor employs an intelligent air semiconductor sensor to accurately measure temperature and humidity., ?【Versatile Application】An indispensable tool for any family, this air quality monitor is ideal for detecting gas and air pollution in homes, offices, schools, vehicles, hotels, and during travel or camping.