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. 1 x Temperature Sensor Module Item Type: Temperature Sensor ModuleWorking Current: 14-18MASerial Baud Rate: 9600 (default), N, 8, 1 Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement.