Item Type: Temperature Sensor ModuleWorking Voltage: DC 12V, 8-25V. Working Current: 10-25MA, depending on the number of external NTCs. RTU Command: Supports 03 06 function coding. Serial Baud Rate: 9600 in default, N, 8, 1. Temperature Measurement Range: -20 to +125.Temperature Measurement Accuracy: 1%. .wang-edit-text{ font-family:'Arial' !important; } .wang-edit-text table { border-top: 1px solid #000; border-left: 1px solid #000; } .wang-edit-text table td, .wang-edit-text table th { border-bottom: 1px solid #000; border-right: 1px solid #000; padding: 3px 5px; } .wang-edit-text table th { text-align: center; } 1Good Communication: Can cascade 247pcs module at most by modifying the RS485 address, and use the R485 repeater for more than 16pcs module. 2Can Work with NTCs: Suits perfectly for B3950 1% NTC thermistor, and can connect up to 16 NTC sensors at the same time, highly efficient. 3Measurement Ranges: Comes with a wide temperature measurement range of -20 to +125, and has great measurement accuracy up to 1% as well. 4Reliable for Using: This temperature sensor module is widely used for temp recording and paperless recorder, and the test value is reliable. 5Simpler to Install: Designed to have a compact size and a light weight, the temp sensor board enables convenient installation within minutes.