AHT10 High Precision Digital Temperature and Humidity Sensor Module

The AHT10 is a step up from entry-level sensors like the DHT11: a MEMS capacitive humidity element paired with an on-chip temperature sensor, both factory-calibrated and read over I2C rather than a single-wire protocol, which is both more accurate and easier to share a bus with other I2C devices. Temperature accuracy runs around 0.3°C and humidity around 2%, roughly double the precision of a DHT11 at a similar price point.

Because it communicates over I2C, it coexists on the same two wires as other I2C sensors and displays without needing a dedicated pin the way single-wire sensors do, which matters once a project has more than one or two sensors competing for GPIO pins. The wide 1.8V to 6.0V operating range covers both 3.3V and 5V microcontroller platforms without a level shifter.

Suited to weather stations, greenhouse and indoor climate monitoring, and any project where the DHT11's coarser accuracy is not good enough but a full industrial sensor is more than the build needs.