DFRobot Fermion AHT20 Temperature and Humidity Sensor (Breakout)


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SKU: 1356224
  1. Brand: DFRobot
  2. Product: Fermion AHT20 Temperature and Humidity Sensor
  3. Operating Voltage: DC2V~5V
  4. Output Signal: I2C
  5. I2C Address: 0×38


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Brand: DF Robot
Category: Temperature & Humidity Sensor

The AHT20 is a high-precision but low-cost temperature and humidity sensor, which is equipped with an improved MEMS semiconductor capacitive humidity sensor element. It features a standard I2C interface and a wide voltage supply of 2V – 5V. And with the simple peripheral circuit, it performs stably even in harsh environments in the measuring range of -40~+85℃.

This sensor can be widely used for measuring the environmental temperature and humidity of home electronic equipment, the temperature and humidity of automobiles, and so on.


  1. Digital output, I2C interface
  2. Excellent long-term stability
  3. Quick response and strong anti-interference ability

Package Includes:

1 x Fermion AHT20 Temperature and Humidity Sensor (Breakout)

SKU: 1356224 Category:
Output Signal


I2C Address


Relative humidity Resolution

0.024 %RH

Accuracy Error

±2% RH


±0.1 %RH


±1 %RH


±0.1 %RH

Response Time


Operating Range

0~100 %RH

Long-term Drift

<0.5 %RH/yr

Shipping Weight 0.02 kg
Shipping Dimensions 5 × 5 × 1 cm

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Country Of Origin: China