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.
| Vizsgált paraméter | Leírás |
|---|---|
| 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 ° körirányú |
| Wind starting threshold | No start-up wind-speed limit; supports zero-wind-speed operation |
| Zajtartomány | 30-120 dB |
| PM2.5 és PM10 tartomány | 0–1000 µg/m³ |
| Részecskefelbontás | 1 µg/m³ |
| Szemcsés állag | Listed as ±10%; dual-frequency acquisition and automatic calibration |
| Légköri nyomástartomány | 0-120 kPa |
| Kommunikáció | RS485; Modbus RTU |
| Listed communication distance | Akár 2000 m |
| Telepítés | 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

Specifikáció letöltése
Töltse le a HD-S90 specifikációját (PDF)
Gyakran ismételt kérdések
Mit mér a HD-S90?
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.





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