Feature: 1. By modifying the 485 address, a maximum of 247 modules can be cascaded (more than 16 please use R485 repeater) 2. High temperature measurement accuracy, the temperature measurement range is -20℃ to + 125℃ 3. Suitable for industrial systems, thermometers and thermally sensitive systems 4. Adopted of high quality electronic components, and accuracy process, ensure for the durability 5. The pin has good contact performance, ensure stable working Specification: Item Type: Temperature Sensor ModuleWorking Voltage: 5V Version: DC 3.7-5.5V; 12V Version: 6-25V Working Current: 7-13MA MODBUS RTU protocol, 03 read command, 06 write command. Serial Port 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) Adapted Sensor: B3950 10K 1% NTC thermistor Resistor Temperature Measurement Range (using Our NTC Sensor): -20℃ to +125℃ . Temperature Measurement Accuracy (using Our NTC Sensor): 1%. Size: Approx. 30 x 15 x 6mm / 1.2 x 0.6 x 0.2in Weight: 5V version 2g, 12V version 2.5g Optional Style: 5V TTL232 No Sensor, 5V 485 No Sensor, 12V 485 No Sensor, NTC Sensor A, NTC Sensor B. Package List: 1 x Temperature Sensor Module