Product adopts industrial-grade chip and high-precision SHT20 temperature and humidity sensors, offering good reliability, high accuracy, and interchangeability. Features RS485 hardware interface with protection design, protocol layer compatible with standard industrial Modbus RTU protocol. This product integrates MODBUS RTU and UART communication protocols, supporting automatic data reporting function via RS485 serial interface (temperature and humidity data output automatically). Installation Steps: 1. Connect to signal receiver via RS485 terminal. 2. Connect power supply to power terminal. 3. Process acquired data according to actual requirements. Notes: - Users must provide their own Modbus debugging tool and RS485 debugger. - Users need to write code based on communication protocol and commands when using a controller to receive data. Features: - Supports MODBUS RTU protocol - RS485 communication up to 1000 meters - Standard DIN35 mounting rail design - High measurement accuracy - Built-in industrial-grade SHT20 temperature and humidity sensor with RS485 communication - Compatible with standard MODBUS RTU protocol - Baud rate configurable - Supports automatic data upload function with adjustable upload interval Parameters: - Product Name: Modbus RTU RS485 SHT20 Temperature Humidity Transmitter - Working Voltage: DC 5V–30V - Output Signal: RS485 - Communication Protocol: Modbus RTU - Communication Address: 1–247 (default 1) - Temperature Range: -40°C to 60°C - Temperature Accuracy: ±0.5°C - Temperature Resolution: 0.1°C - Humidity Range: 0%RH to 80%RH - Humidity Accuracy: ±3%RH - Humidity Resolution: 0.1%RH - Power Consumption: Less than 0.2W - Operating Temperature: -40°C to 85°C - Operating Humidity: 0% to 95%RH (non-condensing) - Dimensions: 65 x 46 x 28.5mm - Condition: New - Type: ICs - Power Dissipation: Less than 0.2W - Color: White - Material: Plastic - Application: Temperature and Humidity Monitoring Applications: - Environmental Monitoring - Equipment Cabinet Monitoring - Industrial Testing - Home Security Systems Package Contents: 1 x Temperature and Humidity Sensor Note: The package includes only the items listed above. Light and display differences may cause slight color variation between the product image and actual item. Measurement error allowed: ±1–3cm.