Description:ENS160 is a digital multi-gas sensor designed specifically for indoor air quality monitoring, providing optimal detection of a wide range of gases and volatile organic compounds (VOCs), including toluene, hydrogen, ethanol, NO2, and ozone, air quality sensors for home and building automation, consumer products, appliances, and air purification.The AHT21, a new generation of temperature and humidity sensors, sets a new standard in terms of size and intelligence: it is embedded in a two-row flat pin-less SMD package suitable for reflow, with a base of 3X3MM and a height of 0.8MM. The sensor outputs a calibrated digital signal in standard 12C format.With a newly designed ASIC dedicated chip, an improved semiconductor capacitive humidity sensor and a standard on-chip temperature sensor, the AHT21's performance has greatly improved and even exceeded the reliability level of the previous generation of sensors, and the new generation of temperature and humidity sensors have been improved to provide more stable performance in harsh environments. Mainly used in HVAC, dehumidifier, test and detection equipment, consumer goods, automobiles, automatic control, data recorder, weather station, home appliances, humidity regulation, medical and other related temperature and humidity detection and control.ENS160 Detection gases: A variety of gases and volatile organic compounds (VoCs) are best detected, including toluene, hydrogen, ethanol, NO2, and ozone Detection range: With four MOX sensor elements Preheating time :560minutes Output: Multiple IAQ outputs (TVOC, eCO2, AQI) Interface :I2C and SPI interface Humidity: 595%, Temperature: -40+85℃ Preheating: