DFRobot Gravity: AHT20 Temperature and Humidity Sensor


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SKU: 1356227
  1. Brand: DFRobot
  2. Product: Gravity AHT20 Temperature and Humidity Sensor
  3. Operating Voltage: DC 2V-5V
  4. Output Signal: I2C
  5. I2C Address: 0x38
  6. Dimension: 30mm×20.5mm/1.18×0.81″


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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. Fast response, strong anti-interference, and adaptability
  4. Gravity interface, simple wiring, no soldering required

Package Includes:

1 x DFRobot Gravity AHT20 Temperature and Humidity Sensor

SKU: 1356227 Category:
Operating Voltage


Output Signal


I2C Address





0.024 %RH

Accuracy Error

±2 %RH


±0.1 %RH


±0.1 %RH

TEMP Resolution


TEMP Accuracy Error


TEMP Repeatability




Response Time

Minimum 5S, maximum 30S

Operating Range


Long-term Drift


Shipping Weight 0.011 kg
Shipping Dimensions 6 × 6 × 3 cm
6 Months Warranty

This item is covered with a supplier warranty of 6 months from the time of delivery against manufacturing defects only. This is a quality product from the original manufacturer. Only manufacturing defects are covered under this warranty. Reimbursement or replacement will be done against manufacturing defects.

What voids the warranty:

If the product is subject to misuse, tampering, static discharge, accident, water or fire damage, use of chemicals & soldered or altered in any way.

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Country Of Origin: China