RS485 Temperature And Humidity Sensor
RS485 Temperature And Humidity Sensor
Overview
- Stable RS485 communication up to 1,200 m for long-distance industrial monitoring
- Modbus RTU protocol for seamless PLC, HMI, and SCADA integration
- ±15KV ESD protection and built-in TVS diodes for strong anti-interference performance
- High-precision sensing with ±0.3 °C temperature and ±3 % RH humidity accuracy
- Supports up to 254 devices on one RS485 bus to reduce wiring costs
- Rugged IP65 enclosure for harsh factory and greenhouse environments
- Ultra-low annual drift < 0.1 °C for long-term stability and reduced maintenance
- Wide 9–30 V DC power input compatible with standard 24 V industrial systems
- Fast response time with data refresh < 2 seconds
- Reliable operation in extreme temperatures from –40 °C to +80 °C
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Industrial RS485 Temperature & Humidity Sensor – Modbus RTU – IP65 Waterproof for Greenhouse Warehouse HVAC
Product Description
The RS485 Temperature & Humidity Sensor is engineered for industrial IoT applications, featuring Modbus RTU protocol for reliable long-distance multi-device communication. It directly addresses key pain points for Google independent site users, such as inaccurate data in harsh environments, complex installations, and poor compatibility.
This sensor uses high-precision imported chips with a temperature range of -40°C to +125°C and humidity 0-100% RH, offering IP-rated waterproofing and dustproofing for smart agriculture, warehouse monitoring, and HVAC systems.
Why Choose Our RS485 Temperature & Humidity Sensor
- Unstable Wireless Signals in Industrial Sites
RS485 wired communication eliminates signal dropouts caused by metal structures, EMI, or thick walls.
- Long-Distance Monitoring Requirements
Supports transmission distance up to 1200 meters without repeaters.
- PLC / BMS Integration Issues
Fully compatible with Modbus RTU protocol for seamless integration with industrial controllers.
- High Maintenance Costs
No batteries required — ideal for 24/7 continuous operation.
- Harsh Industrial Environments
Optional IP65/IP67 enclosure protects against dust, moisture, and condensation.
- Multi-Point Monitoring Complexity
Multiple sensors can be connected in one RS485 bus network, reducing wiring complexity.
RS485 Temperature & Humidity Sensor Specifications
| Parameter | Specification |
|---|---|
| Sensor Type | Digital Temperature & Humidity Sensor |
| Communication | RS485 |
| Protocol | Modbus RTU |
| Humidity Range | 0–100 % RH |
| Humidity Accuracy | ±2 % RH (typical) |
| Temperature Range | –40 °C to +80 °C |
| Temperature Accuracy | ±0.3 °C (typical) |
| Resolution | 0.1 °C / 0.1 % RH |
| Transmission Distance | Up to 1200 m |
| Baud Rate | 2400–115200 bps (configurable) |
| Power Supply | 9–30 V DC |
| Protection Level | IP65 (optional IP67) |
| Operating Environment | –40 °C to +85 °C |
| Installation | Wall Mount / Duct Mount |
| Output | Temperature & Humidity Data via Modbus Registers |
| Certification | CE, RoHS |
Typical Applications
Industrial Automation
Factory environmental monitoring
Equipment room climate control
Production line humidity management
HVAC & Building Automation
Air handling units (AHU)
Duct temperature and humidity monitoring
Smart building management systems
Agriculture & Greenhouses
Precise humidity control
Crop protection
Irrigation optimization
Warehousing & Logistics
Cold storage monitoring
Pharmaceutical compliance
Food safety storage environments
Data Centers
Rack-level humidity monitoring
Server room environmental control
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Strict Production Process
Engineers develop optimized electronic circuits and structural designs based on real application needs.
High-quality components and materials are carefully selected from trusted suppliers to ensure long-term reliability.
Automated SMT and precision soldering technologies are used to build stable and high-performance circuit boards.
Sensor elements or connector terminals are assembled with the PCB and housing to ensure accurate operation and strong mechanical stability.
Each product undergoes strict calibration and functional testing to guarantee accuracy and stable performance.
Every unit is carefully inspected, labeled, and securely packaged to ensure it arrives safely and performs reliably for your applications.
Strict Production Process of Yafeite
