Keep tabs on your indoor air with the JUANJUAN 3-in-1 Air Quality Monitor. Choose the CO₂ model with NDIR sensing for 400–5000 ppm monitoring, or the CO model with 0–999 ppm detection, while both options measure temperature and humidity with a clear TFT LCD display. Compact and rechargeable with Type-C charging, adjustable brightness, sound and vibration alerts, and a handy lanyard, it’s ideal for home, greenhouse, camping, vehicles, and environmental monitoring.
