This sensor family provides reliable indoor air quality monitoring for home and building automation, consumer devices, household appliances, and air purification. AHT21 - Ultra-compact temperature and humidity sensor. 3x3 mm bottom footprint, 0.8 mm height, embedded ASIC, and an enhanced capacitive humidity sensing element. - Reflow-solder friendly SMD package with standard I2C digital output. - Benefits: small footprint enables close placement to control logic, improved reliability, low power, easy integration with microcontrollers. ENS160 - Digital multigas sensor for indoor air quality detection. Detects a broad range of gases and VOCs, including toluene, hydrogen, ethanol, and NO2. - Calibrated digital signal in standard I2C format. - Benefits: wide gas coverage in a compact package, fast, stable IAQ readings, suitable for real-time control and alerts. Overall - I2C digital interface for straightforward host integration. - AHT21 leverages an ASIC-specific design with an improved humidity sensing element, delivering higher reliability and performance than previous generations. Use scenarios - Smart thermostat or HVAC controller that adjusts ventilation based on temperature, humidity, and IAQ. - Home or office air purifier that modulates fan speed and filtration in response to VOC and gas readings. - IAQ monitoring for smart buildings or appliances (e.g., smart fridge, laundry devices) to maintain occupant comfort and product quality.