The RS485 Temperature & Humidity Sensor is a professional-grade environmental monitoring device engineered for long-term outdoor use. Built with a high-precision digital sensing core and protected by a multi-layer radiation shield, this sensor delivers accurate climate data even under direct sunlight, rain, dust, and harsh environmental fluctuations.
Supporting RS-485 Modbus RTU, the sensor integrates seamlessly with PLCs, industrial controllers, data loggers, SCADA systems, and IoT gateways. It is ideal for agriculture, smart farming, weather stations, HVAC monitoring, cleanrooms, and industrial automation.
Key Features
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Accurate temperature and humidity monitoring
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RS-485 MODBUS RTU communication (long-distance, noise-immune)
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Outdoor radiation shield for accurate readings
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Industrial-grade build for harsh environments
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Fully weather-proof enclosure
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Excellent long-term stability
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Low power consumption
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Plug-and-play field installation
?️ Technical Specifications
Electrical
| Parameter | Value |
|---|---|
| Communication | RS485 (MODBUS RTU) |
| Protocol | 9600 / 19200 / 115200 configurable |
| Power Supply | 5–24V DC |
| Cable Type | 4-core shielded cable |
| Max Bus Distance | Up to 1200 meters |
Sensing Performance
| Feature | Specification |
|---|---|
| Temperature Accuracy | ±0.1°C (typical) |
| Humidity Accuracy | ±1.0% RH (typical) |
| Temperature Range | –40°C to +125°C |
| Humidity Range | 0–100% RH |
| Response Time | Fast, optimized with airflow shield |
| Long-Term Drift | Very low, industrial-grade stability |
Mechanical
| Parameter | Value |
|---|---|
| Radiation Shield | Multi-layer, UV-resistant |
| Height | 165 mm |
| Diameter | 108 mm |
| Mounting | Pole/Wall using included bracket & U-bolts |
| Materials | ABS shield, steel hardware |
What’s Included
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Weather-proof RS485 Temp & Humidity Sensor
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Mounting Bracket
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U-Bolts for pole mounting
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Washers & Nuts
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4-Core cable for RS485 communication & power
Everything required for installation is included in the box.
Radiation Shield Advantages
The multi-plate shielding system improves sensor accuracy by:
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Blocking direct sunlight
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Reducing heat radiation errors
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Allowing natural ventilation
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Preventing rain and dust contact
This makes readings significantly more reliable compared to uncovered outdoor sensors.
Applications
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Weather monitoring stations
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Smart agriculture / greenhouse automation
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Industrial environment monitoring
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Server rooms & equipment monitoring
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Smart city climate sensing
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Air handling units (AHU) & HVAC
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IoT gateways & remote monitoring systems
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Cleanrooms & warehouses
