About This ENS160 is a digital multi-gas sensor designed specifically for indoor air quality monitoring, providing optimal detection of a wide range of gases and VOCs, including toluene, hydrogen, ethanol, nitrogen dioxide, and ozone. AHT21 is a new temperature and humidity sensor that is embedded in a two-row flat no-lead SMD package suitable for reflow soldering. The sensor outputs a calibrated digital signal in standard 12C format. The AHT21 is equipped with a newly designed ASIC chip, an improved semiconductor capacitive humidity sensor element and a standard on-chip temperature sensing element. This allows it to maintain stable performance in harsh environments. Gas Detection:toluene, hydrogen, ethanol, nitrogen dioxide, ozone and so on. SHOP WITH CONFIDENCE: To provide you with the highest quality service, If you have any question, please contact us.We will provide after-sales service . Overview Brand : DONGKER Power Source : Corded Electric Operating Humidity : 100 percent Number of Items : 1 Manufacturer : DONGKER UPC : 774827592344