AHT10 Temperature and Humidity Sensor - High Precision I2C Digital Module

The AHT10 is a high-precision digital temperature and humidity sensor that combines a calibrated capacitive humidity sensing element with an on-chip temperature sensor in a compact surface-mount package. It outputs fully calibrated digital data over a standard I2C interface, eliminating the need for external analog-to-digital conversion and simplifying integration with microcontrollers and single-board computers. The sensor operates from a 1.8–3.6V supply (module boards typically accept 3.3V or 5V), measures humidity from 0% to 100% RH with a typical accuracy of ±2% RH, and measures temperature from -40°C to +85°C with a typical accuracy of ±0.3°C. Its fine resolution—0.024% RH and 0.01°C—makes it suitable for applications that require granular environmental data, such as HVAC systems, dehumidifiers, greenhouses, weather stations, and data loggers. The AHT10 is factory-calibrated, with a unique batch number printed on each unit, and its improved MEMS design offers better stability in harsh or noisy environments compared with earlier sensor generations. Whether you are building a home automation node, a cold-chain monitor, or an industrial control panel, this AHT10 temperature humidity sensor provides a reliable, cost-effective path to accurate environmental measurement.

AHT10 sensor module Application

1. HVAC systems and dehumidifiers requiring accurate temperature and humidity feedback for climate control.
2. Greenhouse and agricultural monitoring for crop health and environmental management.
3. Data loggers, weather stations, and cold-chain monitoring with factory-calibrated I2C output.
4. Testing and measurement equipment that needs fine resolution (0.01°C / 0.024% RH).
5. Low-power IoT nodes and embedded systems operating from battery supplies.

AHT10 sensor module Specifications

1. Sensor model: AHT10
2. Supply voltage: 1.8V to 3.6V DC (module boards typically 3.3V / 5V)
3. Humidity measurement range: 0% to 100% RH
4. Temperature measurement range: -40°C to +85°C
5. Humidity accuracy: ±2% RH (typical)
6. Temperature accuracy: ±0.3°C (typical)
7. Humidity resolution: 0.024% RH
8. Temperature resolution: 0.01°C
9. Output interface: I2C (7-bit address 0x38)
10. Operating current: 0.25µA to 23µA (depending on mode)
11. Package: surface-mount, reflow-solderable
12. Calibration: factory-calibrated with unique batch number