Feature: 1. Module Function: This module is applicable to PT100 3 wire or 2 wire sensor, can read the temperature and PT100 resistance value. 2. Module Cascade: By modifying the 485 address, 247 modules can be cascaded at most (use R485 repeaters for more than 16). 3. Reading Writing: 4 channel temperature sensor module, 03 read command, 06/16 write command, which is stable and reliable. 4. Wide Application: For constant temperature system, thermal sensitive system, measuring instrument, weather forecast and monitoring, etc. 5. Easy Operation: The temperature sensor module has a compact size, easy to connect and use, and has a wide range of applications. Specification: Item Type: Temperature Sensor Module Working Current: 14-18MA Serial Baud Rate: 9600 (default), N, 8, 1. Package List: 1 x Temperature Sensor Module