5-in-1 Professional Indoor Air Quality Monitor Indoor Portable CO2 Monitor | Temperature | Formaldehyde Detector | Humidity TVOC | Air Quality Tester - Confined Space Clean Air Monitor(Bright White) — Open-Box, 80% Off

【MULTIFUNCTIONAL AIR QUALITY METER】This 5 in 1 air quality tester can real time accurate detect carbon dioxide (CO2), formaldehyde (HCHO), volatile organic compounds (TVOC), temperature and humidity. It is necessary to know the air quality of the place where you live and it can help you understand indoor air quality at a glance. 【COLOR LED SCREEN】This CO2 detector adopts intelligent color screen, which is super easy to read and shows clearly real time data. You can directly to know the overall environment quality and track on each gas mean value to know what gas in air is unsafe and take accordingly actions. In alert mode, the monitor will alert you to the environment by changing the colors. 【USB RECHARGEABLE BATTERY】This indoor air quality monitor adopts 2000mAh battery and supports USB charging, supporting a long time of continuous use and providing great convenience to charge, so that you can check the air quality from anywhere. It can carry on long time uninterrupted monitoring to air quality and will always take care of you and your family health. 【WIDE APPLICATION】This indoor air quality meter is small and portable, can detect the gas quality in bedroom, living room, kitchen, office, car, school, hotel, cellars, restaurant, campground and other environments. It is suitable for home air detection, car air detection, grow room, maternal and child room air detection, and public place detection and so on. 【100% QUALITY ASSURANCE】We are very confident in the quality of this portable CO2 monitor, and provide 12 months warranty or refund for it. Please feel free to reach us if you have any questions about your purchase. We will solve your problem within 24 hours.

Why choose our 2026 Upgrade Air Quality Monitor ?

5-IN-1 Indoor Air Quality Detector, Best overall value，Directly Know Your Home Air Quality Grade.

This product can simultaneously detect the real-time data of temperature/humidity/co2/TVOC/Formaldehyde in one machine for five purposes, saving money and more worry.

• Large LED Digital Display at A Glance

With our CO2 Detector, you can see the temperature/humidity/co2/TVOC/Formaldehyde monitoring data in real time on the product display.

• 7/24 Always-on Monitoring

Levels of aqi are changing all the time. Investigate the possible causes of spikes in levels and watch them decrease when you take steps to improve airflow in the room . 

• Compact and Portable

Our carbon dioxide detector is small enough to fit in the palm of your hand ,making it easy to move around your home or office as needed.

• Convenient Operation

Our home air quality meter has only 1 button, which is clear and easy to operate.

• Scientific Layout and Rational Design

The Air Quality Tester is designed with 4 holes to increase air circulation and improve heat dissipation and testing accuracy.

• 2100mA Rechargeable Battery

Indoor air quality monitor built-in 2100mAh battery, Type-C cable charging, standby 7-8 hours, the air quality monitor is very lightweight and can be carried around or plugged into the data cable for continuous use.

• Available Anytime, Anywhere

Portable air quality monitor is not only a valuable tool for individuals concerned about their health but also for professionals in various fields. It can be used by homeowners, office workers, schools, hospitals, and even building managers to monitor and optimize indoor air quality.