As living standards improve, people are becoming more and more concerned about air quality. The carbon dioxide density meter is also easy to carry and can be used indoors or outdoors. Features【Color Screen】Due to the large screen, the data display of each measured value is clearly visible.【High Efficiency Chip】Use the principle of optical infrared to accurately detect carbon dioxide and Tvco.【Multifunctional】Carbon dioxide measurement】Tvoc detection, hazard assessment, to detect temperature and humidity, intelligent alarm system, gas recognition algorithm, multiple interference prevention, air convection technology, greenhouse calibration compensation.【W LCD Real-Time】High precision sensors are used to display real time monitoring, environmental data pollution, carbon dioxide concentration per cubic meter and tvco price-quality ratio" in real time. Carbon dioxide is updated in real time by 1 second/hour.【Applicable Field】Suitable for various occasions such as agricultural planting, greenhouse vegetables, production warehouse, raw material processing, indoor (home, education table, business office). Product SpecificationMaterial: PVC+ABS Measurements: 90x70x40mmCarbon Dioxide Measurement Range: 400-5000PPM Measuring Instruments: Temperature & Humidity, CO2, TVOC Packing List1 x Carbon Dioxide Meter1 x USB Cable1 x User Manual1 x Box,