Modbus Temperature and Humidity Sensors

Modbus Temperature and Humidity Sensors

Overview

  • Standard Modbus RTU uses industrial RS485 protocol supporting up to 247 device nodes
  • Long-Distance Transmission maintains reliable data communication over distances up to 1200 meters
  • Wide Temperature Range operates safely in harsh industrial environments from -40 ℃ to 85 ℃
  • High Precision Sensing delivers accurate temperature and humidity readings with minimal tolerance
  • Durable IP65 Housing features a certified dustproof and waterproof enclosure for harsh conditions
  • Cost-Saving Daisy-Chaining connects multiple sensors on one bus, reducing cabling costs significantly
  • Low Power Consumption ensures long-term operational stability with minimal energy use
  • Excellent Anti-Interference resists electromagnetic noise to ensure reliable performance in industrial sites
  • Real-Time Monitoring provides rapid data updates for prompt and efficient environmental control
  • Plug-and-Play Integration offers simple configuration to save time during system deployment

Industrial Modbus Temperature and Humidity Sensors (RS485 / RTU)

Optimize your environmental control systems with our comprehensive range of industrial-grade Modbus temperature and humidity sensors. Because modern automation demands absolute reliability, these transmitters are engineered specifically for high-precision applications and multi-node networking. Furthermore, by utilizing the industry-standard RS485 Modbus-RTU protocol, they integrate seamlessly with PLCs, DCS systems, IoT gateways, and environmental monitoring software without any complex driver development.

Whether you need to monitor indoor climate or  track extreme process temperatures, we provide versatile form factors—including wall-mounted room monitors, high-temperature duct probes, and weatherproof outdoor units—to safeguard your critical environments.

Product Categories

1. Wall-Mounted Room Sensors

  • Applications: Ideal for server rooms, data centers, HVAC systems, smart buildings, and laboratories.

  • Key Features: In order to blend into professional environments, these sensors feature a compact, aesthetic enclosure for indoor wall installation. In addition, they can be equipped with clear local LCD displays so that technicians can perform quick, on-site real-time monitoring.

2. Duct-Mount & Probe Type Sensors

  • Applications: Perfect for ventilation ducts, clean rooms, agricultural greenhouses, and environmental chambers.

  • Key Features: To ensure accurate measurements within changing airflows, these models utilize extended stainless steel or sintered metal probes. Consequently, they offer excellent dust resistance and structural durability while protecting the inner sensitive elements.

3. Outdoor Weatherproof Transmitters

  • Applications: Extensively used in meteorological stations, solar farms, agricultural monitoring, and harsh outdoor industrial sites.

  • Key Features: Designed with IP65/IP67 waterproof housings, these transmitters are highly resilient against torrential rain. Moreover, they are equipped with multi-layer radiation shields (shutter boxes) specifically to protect sensitive components from solar UV radiation and thermal distortion.

4. High-Precision & High-Temperature Series

  • Applications: Engineered for industrial drying ovens, pharmaceutical manufacturing, food processing, and specialized research facilities.

  • Key Features: While standard sensors fail under high heat, this premium series supports extended operating ranges up to 120°C (248°F). As a result, they deliver exceptional performance with minimal long-term drift in demanding thermal environments.

Why Choose Our Modbus-RTU Sensor Solutions?

Seamless Industrial Integration (PLC & SCADA Ready)

Our sensors strictly follow the standard Modbus-RTU protocol over RS485. Therefore, they guarantee 100% plug-and-play compatibility with mainstream PLCs and HMI/SCADA configuration software, which ultimately accelerates your project deployment.

Scalable Daisy-Chain Networking

With support for up to 247 slave addresses on a single RS485 bus, these sensors drastically reduce wiring complexity. Compared to traditional analog 4-20mA or 0-10V lines, this means you can significantly cut down on installation time and overall hardware costs.

Premium Sensing Technology

Equipped with industry-leading digital sensor chips, our products deliver a typical temperature accuracy of ±0.3°C and humidity accuracy of ±2% RH. Consequently, you get fast thermal response times and superior long-term stability you can trust.

Built for Harsh Environments

Thanks to built-in reverse polarity protection, overvoltage protection, and high-density anti-condensation filters, our transmitters ensure uninterrupted 24/7 monitoring. Even if your facility experiences high-dust or highly humid industrial conditions, these units keep performing.

Technical Selection Guide (Quick Reference)

To help you choose the right configuration for your project, please refer to the comparison below:

Sensor TypePlacementHousing RatingTemperature RangeSignal Output
Wall-MountIndoor / RoomsIP30-20°C to 60°CRS485 (Modbus-RTU)
Duct-ProbeAir Ducts / ChambersIP65 (Probe)-40°C to 85°CRS485 (Modbus-RTU)
OutdoorOpen Air / Solar FarmsIP65 + Radiation Shield-40°C to 80°CRS485 (Modbus-RTU)
High-TempOvens / Process LinesIP65 (Remote Probe)-40°C to 120°CRS485 (Modbus-RTU)

Looking for Custom Solutions or Volume Pricing?

Whether you need a customized sensor probe length, specific cabling, or bulk OEM pricing for large-scale deployments, our engineering team is here to assist. Please contact us today with your project specifications, and we will provide a detailed technical proposal and quotation within 24 hours.

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Strict Production Process

Product Design

Engineers develop optimized electronic circuits and structural designs based on real application needs.

Premium Component Sourcing

High-quality components and materials are carefully selected from trusted suppliers to ensure long-term reliability.

Advanced PCB Manufacturing

Automated SMT and precision soldering technologies are used to build stable and high-performance circuit boards.

Precision Assembly

Sensor elements or connector terminals are assembled with the PCB and housing to ensure accurate operation and strong mechanical stability.

Calibration & Performance Testing

Each product undergoes strict calibration and functional testing to guarantee accuracy and stable performance.

Final Quality Inspection & Packaging

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