Portable air quality detector with CO2 temperature and humidity sensor.

Portable Air Quality Detector: • CO2 / Carbon Dioxide Sensor: Check indoor CO2 concentration accurately and quickly to protect your health. • Different source colors show different air quality: - 400-450ppm green - 451-700ppm blue - 701-1000ppm purple - 1001-2000 yellow - 2001-5000ppm red • Professional electrochemical detection module, high precision, stable performance, Low consumption and can provide long service time. • High-precision thermometer and hygrometer function allows real-time indoor temperature and humidity monitoring. • Clean and compact design, with color TFT screen. • Built-in rechargeable battery. Battery capacity: 2500mah. Color TFT display screen. Test principle: laser / electrochemical Temperature measurement range: - 20-40 ℃ Relative humidity measurement range: 20 <90% Working voltage: 5V Charging via Micro USB Approximate charging time: 60 minutes. ABS and metal alloy