Temperature & humidity sensor DC 5V-23V RS485 Modbus RTU DHT11 DHT22 DS18B20 PT100
Price in Sri Lanka

The RS485 Temperature & Humidity Sensor Module is an industrial-grade environmental monitoring device designed for reliable data transmission over long distances using the Modbus RTU protocol.

Operating within a wide voltage range of DC 5V to 23V, this module supports multiple sensor types including DHT11, DHT22, DS18B20, and PT100, making it ideal for flexible temperature and humidity monitoring in automation, industrial control, and IoT systems.

With stable RS485 communication and high interference resistance, it is suitable for factories, greenhouses, server rooms, and smart building applications.

Features

• Wide input voltage range: DC 5V–23V
• Industrial RS485 communication interface
• Supports Modbus RTU protocol
• Compatible with multiple sensor types:
  • DHT11
  • DHT22
  • DS18B20
  • PT100
• Long-distance signal transmission
• Strong anti-interference capability
• High stability and reliability
• Suitable for PLC and industrial controllers
• Easy integration into automation systems
• Compact and durable design

Specifications

• Operating Voltage: DC 5V–23V
• Communication Interface: RS485
• Protocol: Modbus RTU
• Supported Sensors: DHT11 / DHT22 / DS18B20 / PT100
• Measurement Parameters: Temperature & Humidity (sensor dependent)
• Transmission Distance: Up to 1200m (RS485 standard, environment dependent)
• Application Type: Industrial Environmental Monitoring

Applications

• Industrial automation systems
• PLC-based monitoring systems
• Greenhouse climate control
• Smart agriculture projects
• Server room temperature monitoring
• HVAC systems
• IoT environmental data logging
• Factory production monitoring