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Grove - AHT20 I2C Industrial Grade Temperature and Humidity Sensor



Grove - AHT20 I2C industrial grade temperature and humidity sensor is equipped with a new generation of temperature and humidity sensor, with fast response speed and strong anti-interference ability. It can guarantee normal use in harsh environments and is suitable for most industrial scenarios.

Key Features

  • Excellent long-term stability: Quick response and strong anti-interference ability, and normal use in harsh environments
  • Suitable for most industrial scenarios: temperature measurement range -40 ~ 85°C, Humidity measurement range 0 ~ 100% RH
  • Equipped with newly designed ASIC chip: improved MEMS semiconductor capacitive humidity sensor and standard on-chip temperature sensor
  • Starter-friendly: Compatible with Arduino, Detailed start-up tutorials, abundant resources, and projects provided in Wiki and Community
  • SMD package suitable for reflow soldering


Grove - AHT20 I2C Industrial Grade Temperature and Humidity Sensor is packaged in a dual-row flat lead-free chip package, suitable for reflow soldering. The AHT20 is equipped with a newly designed ASIC chip: an improved MEMS semiconductor capacitive humidity sensor and a standard on-chip temperature sensor.
Compared with previous generation temperature and humidity sensors such as Grove-Temperature & Humidity Sensor Pro (AM2302/DHT22), AHT20 has a more stable performance in harsh environments. In fact, AHT20 is suitable for most industrial scenarios.
The output is I2C protocol with Grove interface. We have developed more than 400 Grove modules covering a wide range of applications that can meet various needs. Plug and play, easy to get started!

Get Started with Industrial Sensors

SenseCAP S210x series industrial sensors provide an out-of-box experience for environmental sensing. Please refer to the S2101 Wireless Temperature and Humidity Sensor with higher performance and robustness for air temperature and humidity detection.

Upgrade to Industrial Solutions

With the SenseCAP S2110 controller and S2100 data logger, you can easily turn the Grove into a LoRaWAN® sensor. Seeed not only helps you with prototyping but also offers you the possibility to expand your project with the SenseCAP series of robust industrial sensors.

The IP66 housing, Bluetooth configuration, compatibility with the global LoRaWAN® network, built-in 19 Ah battery, and powerful support from APP make the SenseCAP S210x the best choice for industrial applications. The series includes sensors for soil moisture, air temperature and humidity, light intensity, CO2, EC, and an 8-in-1 weather station. Try the latest SenseCAP S210x for your next successful industrial project.


  • 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


  • 24x20x12(mm)

Part List

Grove - AHT20 I2C Industrial Grade Temperature and Humidity Sensor * 1
Grove cable * 1


HSCODE 9025900090
USHSCODE 9026104000
EUHSCODE 9013101000
CE 1
EU DoC 1
RoHS 1
UK DoC 1



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  1. Product Quality
    This is way better than the normal DHT11 sensor


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