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Fermion: AHT20 Temperature and Humidity Sensor (Breakout)

SKU:SEN0527 Brand:DFRobot Reward Points: 35
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Introduction

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 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.

Fermion: AHT20 Temperature and Humidity Sensor

Connection Diagram

Features

  • Digital output, I2C interface
  • Excellent long-term stability
  • Quick response and strong anti-interference ability
  • Applications

  • HVAC
  • Dehumidifier
  • Testing and Inspection Equipment
  • Consumer Appliances
  • Automobiles
  • Automatic Control
  • Data Loggers
  • Weather Stations
  • Specification

    Module Parameters

  • Operating Voltage: DC2V~5V
  • Output Signal: I2C
  • I2C Address: 0×38
  • Dimension: 30mm×20.5mm/1.18×0.81"


    AHT20 Chip Parameters

    Relative Humidity

  • Resolution: 0.024 %RH
  • Accuracy Error: ±2% RH
  • Repeatability: ±0.1 %RH
  • Hysteresis: ±1 %RH
  • Non-linear: ±0.1 %RH
  • Response Time: 8S
  • Operating Range: 0~100 %RH
  • Long-term Drift: <0.5 %RH/yr


    Temperature

  • Resolution: 0.01℃
  • Accuracy Error: ±0.3℃
  • Repeatability: ±0.1℃
  • Hysteresis: ±0.1℃
  • Response Time: minimum 5S, maximum 30S
  • Operating Range: -40℃~85℃
  • Long-term Drift: <0.04℃/yr
  • Documents

    Shipping List

  • Fermion: AHT20 Temperature and Humidity Sensor × 1
  • 2.54-4P Black Single-row Pin Header × 1
  • REVIEW

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    Fermion: AHT20 Temperature and Humidity Sensor (Breakout)

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