Grove - AHT20 I2C Industrial Grade Temperature and Humidity Sensor

SeeedSKU: 104917
Sale price £4
incl. VAT
excl. VAT
Only 9 units left

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The AHT20 is a new generation of temperature and humidity sensor embedded with a dual-row flat and no-lead SMD package, suitable for reflow soldering. It is equipped with a newly designed ASIC chip: an improved MEMS semiconductor capacitive humidity sensor, and a standard on-chip temperature sensor.

The performance of AHT20 is more stable in harsh environments compared with the previous generation of temperature and humidity sensors such as Grove - Temperature & Humidity Sensor Pro (AM2302/DHT22), as a matter of fact, the AHT20 is fittable in most industrial scenarios.

The output is the I2C protocol with the Grove interface.


  • Temperature measurement range -40 ~ 85°C, Humidity measurement range 0 ~ 100% RH
  • Digital output, Grove I2C interface
  • Excellent long-term stability
  • SMD package suitable for reflow soldering
  • Quick response and strong anti-interference ability
  • Compatible with Arduino
  • 4-pin interface reserved


  • Operating Voltage: DC:2.0-5.5V
  • Measuring Range (humidity) 0 ~ 100% RH
  • Temperature Range: -40 ~ + 85 ℃
  • Humidity Accuracy: ± 2% RH (25 ℃)
  • Temperature Accuracy ± 0.3 ℃
  • Resolution: Temperature: 0.01 ℃, Humidity: 0.024% RH
  • Output Interface: Grove I²C Interface
  • I2C address: 0x38
  • Dimensions: 24x20x12 (mm)
  • Product number: Seeed 101990644


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