Temperature measurement range:-20° C to +400°C; Power supply voltage: DC 8-25V(12V recommended) Working current:8-13MA MODBUS RTU protocol,03 read instruction,06 write instruction Serial baud rate:9600(default).N, 8,1 By modifying the 485 address, up to 247 modules can be cascaded (more than 16 please use R485 repeater) to read the temperature and PT100 resistance values Suitable sensor. PT1003-wire or 2-wire sensor Temperature measurement accuracy: 1%, if the temperature deviation is too large, please recalibrate Size:60X 30 X16MM Weight: 32g For details of the protocol, please refer to PT100-RS485 Temperature Sensor Setting Protocol for PT100 sensor specifications. 1. Product name:PT100 waterproof and high temperature probe 2. Probe diameter:6.5MM 3. Probe length:30MM 4. Probe material: stainless steel 5. Line length:0.5 m 6.2/3 wire type Material: Polymer Color: As shown Package Contents: 2 x Temperature Sensor Module Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.