3 in 1 Function: CO2 / temperature/ humidity tester. Multifunction carbon dioxide monitor cares for your health and can be widely used in home, office, market, classroom, hotel, car, cellar, greenhouse, warehouse, lab, etc.
11.2-inch Digital LED Screen: Displays CO2, air quality level (by 4-color expressions), temperature, humidity and battery level. Large digital color screen for easy and clear reading even in dark environments.
Carbon Dioxide Tester: Adopts NDIR sensor and air convection detection, quickly and accurately detects CO2 concentration, ambient temperature and humidity in the living environment.
Comfortable Level, Alarm Buzzer: Normal, 400-1000PPM (Green); Slightly High, 1001-2000PPM (Orange); High, 2001-3000PPM (Yellow); Ultra High, 3001-5000PPM (Red). Clear at a glance, old people and children can easily recognize too.
Rechargeable Battery: Built-in 1200mAh lithium battery, strong endurance and easy recharging. Simple but stylish appearance, place it on the desktop or wall mounted installation, fits in well with different house styles.