Air Quality Monitor Non-dispersive infrared (NDIR) technology Detection of CO2 in the air Detection range, warm-up time, working temperature, working humidity, intelligent detection, high-definition display. The ultra-high-definition color screen is equipped with high-precision sensors, which can more accurately monitor the CO2 gas concentration in real time, and the readings are more intuitive and intuitive. Convenient. Mini compact body design, simple and stylish appearance, your little health consultant, the combination of beauty and technology makes people love it. Carbon dioxide is denser than air. When it exceeds a certain amount, it will affect people's breathing (the same is true for other organisms). The reason is that the concentration of carbonic acid in the blood increases, the acidity increases, and acidosis occurs. The main symptoms of inhalation overdose include headache, dizziness, tinnitus, shortness of breath, chest tightness, fatigue, rapid heartbeat and other symptoms. Built-in high-performance air quality detection chip to ensure more accurate instrument detection.