DFRobot Fermion AHT20 Temperature And Humidity Sensor Breakout: High Accuracy I2C Sensor For Precise Environmental Monitoring

Description:

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 a standard I2C interface and a wide voltage supply of 2V - 5V. 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.

Specifications:

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

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

Useful Links:

• Product wiki
• 2D Dimensions
• 2D Dimensions_CAD
• 3D STP
• Circuit Diagram SCH

Package Included:

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