Key facts
- Brand
- AOSONG
- Model
- AQ3485
- Category
- Other
- Industry
- Industrial
- Documents
- 2
- Languages
- ZH
- Last added
- 2012-02-12
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Aosong AQ3485 Network Temperature and Humidity Transmitter User Manual
The AQ3485 is a network‑type temperature and humidity transmitter that uses a high‑quality digital sensor (AM2302) and a reliable microcontroller to convert -40 °C to 80 °C temperature and 0‑100 % RH humidity into standard MODBUS RS‑485 signals. It is compact, lightweight, and suitable for a wide range of applications such as meteorology, defense, research, chemical, environmental monitoring, and HVAC.
The manual provides product overview, mechanical dimensions, electrical connection diagrams, technical specifications, configuration steps, communication settings, data command formats, and common fault troubleshooting. It also includes software installation instructions for data acquisition. This manual is written in Chinese.
AOSONG AQ3485 specifications
| Humidity measurement range | 0 % RH ~ 100 % RH |
|---|---|
| Temperature accuracy | ±0.03 °C |
| Temperature stability | ±0.02 °C (≥3 years) |
Source: Aosong AQ3485 Network Temperature and Humidity Transmitter User Manual
All AOSONG AQ3485 documents by type
Day-to-day operation, settings and troubleshooting. Start here if the product is already set up.
Questions answered in these manuals
How do I set the baud rate of the AQ3485?
Set the baud rate by adjusting the two dip switches on the back of the PCB according to the desired rate table.
From: Aosong AQ3485 Network Temperature and Humidity Transmitter User Manual
What should I check if the transmitter shows no display?
Verify that the power voltage is within the rated range and that the power cable is correctly connected.
From: Aosong AQ3485 Network Temperature and Humidity Transmitter User Manual
How do I set the communication address of the AQ3485?
Use the eight‑bit dip‑switch on the PCB to select the desired address as shown in the address‑setting table.
From: Aosong AQ3485 Network Temperature and Humidity Transmitter User Manual
How are temperature and humidity values calculated from the returned data?
Divide the returned value by 10; the result gives the temperature in °C or humidity in % RH.
From: Aosong AQ3485 Network Temperature and Humidity Transmitter User Manual