SmartElex AHT20 Temperature & Humidity Sensor


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SKU: 1848626
  1. Model: AHT20
  2. Operational Temperature Range: -40 to 85 °C
  3. Supply Voltage: 3.3V or 5V
  4. Humidity range: 0 to 100 RH%


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Brand: SmartElex
Category: Humidity Sensors
Tags: SmartElex Sensor Modules

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The AHT20 is a nice but inexpensive temperature and humidity sensor from the same folks who brought us the DHT22. You can take sensor readings as often as you like, and it uses standard I2C, so it’s super easy to use with any Arduino or Linux/Raspberry Pi board.

This sensor has a typical accuracy of +- 2% relative humidity, and +-0.3 ?C at 20-80% RH and 20-60 ?C. There is only one I2C address so it’s not a good option when you need multiple humidity sensors.

As with all Adafruit breakouts, we’ve done the work to make this handy temperature-and-humidity super easy to use. We’ve put it on a breakout board with the required support circuitry and connectors to make it easy to work with and is now a trend we’ve added? Molex PicoBlade connectors that allow you to get going?without needing to solder.


  1. Supply Voltage3.3V or 5V power/logic
  2. Accuracy of +- 2% relative humidity
  3. Uses standard I2C, easy to use with any Arduino or Linux/Raspberry Pi board
  4. Use with 3.3V or 5V power/logic
  5. I2C address 0x38. It cannot be changed.
  6. Operational Temperature range: -40 to 85 ?C (+-1 ?C typical accuracy over entire range)
  7. Operational Relative Humidity range: 0 to 100 RH% (+-3 % typical accuracy over entire range)

Package Includes:

1 x SmartElex AHT20? Temperature & Humidity Sensor

SKU: 1848626 Category: Tag:


Operating Temperature (°C)

-40 to 85

Supply voltage(V)

3.3 to 5

Humidity Range

0 to 100 RH%

Length (mm):


Width (mm):


Shipping Weight 0.008 kg
Shipping Dimensions 6 × 4 × 2 cm
1 Year Warranty

This item is covered with a supplier warranty of 1 year from the time of delivery against manufacturing defects only. In case of manufacturing defects or issues, we will replace the part after warranty confirmation by our technical team, but we won’t offer refunds or replace the entire product.

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: India