Real Instruments CO2 Carbon Dioxide Detector, Indoor Air Quality Monitor 4-in-1 Portable CO2 Monitor, Tester for Carbon Dioxide, Temperature & Relative Humidity, CO2 Meter with Alarm, for Home, Car, Grow Tents, Travel

Indoor CO₂ Monitor: Compact body with a hollow back for easy carrying and better airflow. Large colorful LCD screen for clear reading of CO₂, temperature, and humidity. Ideal for homes, baby rooms, classrooms, offices, and other indoor spaces.

Why You Need It: Low CO₂ is safe, but high levels can affect breathing and may become dangerous. Monitoring CO₂ helps maintain a healthy indoor environment.

Advanced NDIR Technology: Uses a high-precision NDIR sensor for fast and accurate CO₂ detection. If CO₂ goes above 1000 ppm, the alarm alerts you to ventilate or use an air purifier.

Air Semiconductor Sensor: 4-in-1 monitor measures CO₂, temperature, and humidity with a sensitive and stable sensor.

Portable Design: Built-in 1600mAh battery provides up to 8 hours of continuous use after charging. Easy to carry anywhere.

Easy Operation: Automatically calibrates at every startup. Place the device in a ventilated area for 1–2 minutes before use.

Wide Applications: Useful for homes, kitchens, bedrooms, offices, schools, cars, hotels, travel, camping, parties, and more—helps keep your family safe with clean air.