Huidu HD-S90 Nine-Element Weather Sensor – RS485 Modbus RTU
$ 679.00
HD-S90 combines nine environmental measurements in one sensor transmitter, including ultrasonic wind speed and direction. It uses RS485 output with Modbus RTU for monitoring-software or PLC integration.
999 in stock
HD-S90 Nine-Element Environmental Sensor
The Huidu HD-S90 integrates wind speed, wind direction, temperature, humidity, noise, PM2.5, PM10, atmospheric pressure and light measurement. RS485 communication using Modbus RTU allows data to be sent to monitoring software or a PLC configuration screen.
| Parameter | Specification |
|---|---|
| Measured elements | Wind speed, wind direction, temperature, humidity, noise, PM2.5, PM10, atmospheric pressure and light |
| Wind sensing | Ultrasonic; simultaneous wind speed and direction |
| Wind direction coverage | 360° omnidirectional |
| Wind starting threshold | No start-up wind-speed limit; supports zero-wind-speed operation |
| Noise range | 30–120 dB |
| PM2.5 and PM10 range | 0–1000 µg/m³ |
| Particulate resolution | 1 µg/m³ |
| Particulate consistency | Listed as ±10%; dual-frequency acquisition and automatic calibration |
| Atmospheric pressure range | 0–120 kPa |
| Communication | RS485; Modbus RTU |
| Listed communication distance | Up to 2000 m |
| Installation | Horizontal installation; electronic-compass configuration removes directional alignment requirement |
Monitoring-System Integration
The sensor provides a combined environmental data source through its dedicated RS485 circuit and supports secondary development. Check the receiving system for Modbus RTU support and use the specification when planning wiring and communication settings.
Wind Measurement and Installation
Ultrasonic sensing collects wind speed and direction simultaneously. The electronic-compass configuration allows horizontal installation without directional alignment, including mobile applications such as ships and vehicle transport. Confirm the compass configuration when specifying the unit.
The integrated housing uses UV-resistant material. The numerical ranges above are the values supplied in the product information; use the linked specification for the remaining installation and measurement details.
Product Reference Image
Specification Download
Download the HD-S90 specification (PDF)
Frequently Asked Questions
What does the HD-S90 measure?
It measures nine elements: wind speed, wind direction, temperature, humidity, noise, PM2.5, PM10, atmospheric pressure and light.
Does the S90 support Modbus RTU over RS485?
Yes. The product uses Modbus RTU with RS485 output and lists a communication distance of up to 2000 m.
What are the PM2.5 and PM10 measurement ranges?
Both are collected simultaneously over 0–1000 µg/m³, with 1 µg/m³ resolution. The product lists particulate consistency of ±10%.
Does the wind sensor need to face a particular direction?
With the electronic-compass configuration, directional alignment is not required, but horizontal installation is required. Confirm the compass configuration for the unit.
Can the data be used in a PLC monitoring system?
Yes. Data can be sent through RS485 to monitoring software or a PLC configuration screen, and secondary development is supported.
| Weight | 2 kg |
|---|
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