AHT21 Digital Temperature and Humidity Sensor Measurement Module I2C Communication DH11 DHT22 AHT21 - Nyereka Tech: Electronic Components One-stop shop | STEM and IoT, Raspberry Pi and Sensors in Rwanda, Uganda, Kenya ★Its performance has been greatly improved beyond the reliability level of previous generation sensors. AHT10 AHT20 AHT21 High Precision Digital Temperature and Humidity Sensor The first generation of temperature and humidity sensors have been improved to make them more stable in harsh environments. The AHT10 sensor outputs a calibrated digital signal in standard I 2C format. ★The AHT10 is equipped with a newly designed ASIC-specific chip,an improved MEMS semiconductor capacitive humidity sensing element and a standard on-chip temperature sensing element ★The AHT10 sensor outputs a calibrated digital signal in standard I 2C format. DHT-11 Humidity Sensor Case Arduino Raspberry Enclosure Box Protection - temperature - UK ★it is embedded in a dual-row flat leadless SMD package reflow soldering with a 4 x 5mm bottom and a height of 1., 6mm.