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ASAIR AHT21B Temperature and Humidity Sensor Module - I2C

ASAIR AHT21B Temperature and Humidity Sensor Module - I2C
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ASAIR AHT21B Temperature and Humidity Sensor Module - I2C
  • Availabilty: Directly available
  • Model: AHT21B-MOD
  • SKU: 003863
€3.00
Ex Tax: €2.48

A small temperature and humidity sensor in one.

Specifications:

  • Supply voltage: 2.2 - 5.5V DC
  • Signal voltage: 2.2 - 5.5V (same as supply voltage)
  • Communication: I2C
    • I2C address: 0x38 (not changeable)
    • I2C pull-up resistors present: Yes
  • Temperature sensor:
    • Measuring range: -40 - 80°C
    • Accuracy: ±0.5°C (maximum ±1.8°C on full range)
    • Smallest resolution: 0.01°C
  • Humidity sensor:
    • Measuring range: 0 - 100% RH
    • Accuracy: ±3% RH (maximum ±7% on full range)
    • Smallest resolution: ±0.024% RH
  • Pin distance: 2.54mm
  • Dimensions PCB: 12 x 12mm

Pinout (left to right from the front):

  • VDD: Supply voltage
  • SDA: Serial Data (I2C)
  • GND: Ground
  • SCL: Serial Clock (I2C)

Package contents:

  • 1x AHT21B Temperature and Humidity Sensor Module

See the datasheet under the tab "Downloads" for more information.

See the following page for a library for this sensor: Adafruit AHTX0

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aht21b-temperature-and-humidity-sensor-datasheet.pdf 2.31MB Download
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