AOSong AHT2417C Temperature Humidity Sensor User Manual

About this manual

The AHT2417C is a digital temperature and humidity sensor that outputs standard I2C signals and comes calibrated from the factory. It includes a waterproof, dust‑proof breathable membrane on the probe and a 290 mm extension cable with a molded plug for easy connection.

The manual provides performance specifications, wiring guidelines, I2C communication details, storage and handling recommendations, and safety warnings. It also describes recovery procedures after exposure to extreme conditions and outlines the warranty terms. This manual is written in Chinese.

What's inside

• Product Overview
• Sensor Performance
• Temperature Characteristics
• User Guide
• Storage and Handling
• Recovery Process
• Material Recommendations
• Wiring Rules
• I2C Communication
• Warnings and Warranty

Specifications

Frequently asked questions

How do I start a measurement with the AHT2417C?

Send the write measurement command 0x70 0xAC 0x33 0x00 after power‑up and wait about 80 ms for the result.

What should I do if the sensor drifts after exposure to high humidity?

Dry the sensor at 60 °C and 5 % RH for 6 hours, or re‑hydrate it at 25 °C and 85 % RH for 24 hours depending on the condition.

What is the allowed supply voltage range?

The sensor operates from 2.2 V to 5.5 V.