DFROBOT Gravity AHT20 Temperature and Humidity Sensor

SKU: SEN0528/KL4038

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.

FEATURES
Digital output, I2C interface
Excellent long-term stability
Fast response, strong anti-interference, and adaptability
Gravity interface, simple wiring, no soldering required
APPLICATIONS
HVAC
Dehumidifier
Testing Equipment
Consumer Appliances
Automobiles
Automatic Control
Data Loggers
Weather Control
SPECIFICATION
Module Parameters

Operating Voltage: DC2V-5V
Output Signal: I2C
I2C Address: 0x38
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

Wiki: https://wiki.dfrobot.com/SKU_SEN0528_Gravity_AHT20_Temperature_and_Humidity_Sensor