Key benefits Reliable, accurate environmental sensing: uses an industrialgrade chip with precision SHT20 temperature and humidity sensors for stable, interchangeable performance. Flexible and robust communication: RS485 hardware interface with protection design and a Modbus RTU protocol layer for standard industrial compatibility. Dual protocol support: integrates Modbus protocol and ordinary UART communication, allowing you to choose the most suitable interface for your system. Key features Sensor and reliability: industrialgrade components with accuracy temperature and humidity sensing via SHT20 sensors. Interface and protection: RS485 hardware interface equipped with protection design; protocol layer compatible with standard Modbus RTU. Protocol versatility: supports both MODBUS protocol and UART communication; user can select the desired communication method. Automatic reporting: UART communication can automatically report temperature and humidity data when connected to the RS485 serial interface mode tool. Easy integration steps: simple wiring to RS485 terminal and power terminal, followed by data processing tailored to your needs. How to use 1) Connect the signal receiver to the RS485 terminal. 2) Connect power to the power terminal. 3) Process the acquired data according to your application requirements. Notes Users must provide their own Modbus debugging tool and RS485 debugger. If using a controller to receive data, users need to write code according to the communication protocol and commands. Applications Industrial process monitoring: reliable air and climate monitoring in manufacturing floors where Modbus RTU is the standard. Data center and server rooms: continuous temperature and humidity monitoring with secure RS485 protection for critical environments. Warehousing and logistics: environmental monitoring across storage facilities, using UART or Modbus RTU as needed for integration with building management systems.