4channel PT100 temperature sensor input: supports 2wire and 3wire PT100 sensors; resolution 0.1 C; accuracy ±1 C; wide measurement range 200 to 850 C; precision 16bit ADC; The sensor is not connected to the identification. Isolation and protection: 485 isolation; power isolation; power supply antireverse connection; lightning surge protection. Mounting and compatibility: supports rail installation or screw installation; supports various configuration software, PLCs, and touch screens; support RS485 Modbus RTU protocol acquisition. Network and display: supports network Modbus TCP protocol collection; supports 4way host access; supports OLED display to display channel temperature information. Local configuration and indicators: configure device parameters through buttons; power, communication, and network link indicators; supports rapid configuration of the host computer; support custom Modbus address settings; supports multiple baud rate configurations and verification configurations.