It is a kind of quality air quality detector which uses NDIR s-ensor, with high accuracy, stable performance, can accurately detect the value of carbon dioxide, TVOC and HCHO. 3.5 inch large color LED display, you can see the carbon dioxide concentrations, temperature and humidity, electrical quantity, time and data clearly. Widely used: agricultural planting, greenhouse vegetables, production warehouse, material processing, home interior, etc. You can give it a try. Features: It uses NDIR s-ensor, with high accuracy, stable performance, can accurately detect the carbon dioxide value. It adopts air convection, which provides more accurate detection results, and the detection range is from 400ppm to 5000ppm.3.5 inch large color LED display, you can see the carbon dioxide concentrations, temperature and humidity, electrical quantity, time and data clearly. Strong anti-interference ability, low wear and long service life. The product does not need to be calibrated, can be tested after commissioning, and can accurately detect carbon dioxide. Hundreds of vents reserved on the housing not only accelerate the convection between the air and the machine, thereby realizing effective detection, but also provide a delicate heat dissipation effect. Widely used: agricultural planting, greenhouse vegetables, production warehouse, material processing, home interior, etc. Specifications:Name: air quality detectorScreen Type: 3.5 inch LED Battery: ABS Battery: 1*3.7V, 2000mAh Battery(Included)Detection Range: 400-5000ppmTVOC Detection Range: 1ppm Voltage: DC5V/1CHARGING Interface: USBnriving Voltage: -10C to 50C Operating Voltage: 0-95%RHMutter Size: 136.5*78*86mm/5.37*3.07 3.39inProduct Weight: 220g/7.76ouncePackage Size: 150*100*100mm/5. 91*3.94*3.94inPackage Weight: 245g / 8.64ouncePacking List:1 * Air Quality Detector1 * User ManualMany questions about Dropshipping services are as follows:1. How many orders can you handle per day? We are a large company in Shenzhen, China, with a large warehouse that can handle large orders every day. We ship countless packages every day. We can guarantee the order you request.2. How fast can you process orders? We will arrange the shipment as soon as possible after you pay for your order. Priority delivery for dropshipping order3. Can you ship an order without any receipts, invoices and promotional offer inside the package? Absolutely! No invoices, receipts, promotional offer if you leave notes on the order (if you want, we can deliver.)4. If you need other products? We can supply most of the products you need as much as possible1If you have any other questions, please feel free to