Real Instruments CO2 Monitor Thermometer Hygrometer High Accuracy Desktop CO2 Detector Indoor Air Quality Meter with Alarm Multi-function CO2 Air Quality Detector CO2 Meter NDIR Sensor PPM Carbon Dioxide Monitor, AQM-12

Clear Display Screen: Features a bright, easy-to-read screen with adjustable brightness for clear viewing in any lighting condition.

Rechargeable Battery: Comes with a 1600mAh battery. A 2-hour charge provides up to 24 hours of continuous monitoring.

Multifunctional CO₂ Monitor: Measures CO₂ levels from 400–5000 ppm and updates every 1.5 seconds. Also tracks temperature and humidity in real time.

Alert System: Built-in alarm notifies you when CO₂ levels get too high. The alarm can be turned off, and the device can be calibrated to keep readings accurate.

Stable and Portable: Can stand securely on a desk. Lightweight and easy to carry, suitable for homes, offices, classrooms, and other indoor spaces.