Features: This RS485 MODUBS RTU module with sensor and enclosure is for temperature measurement, offering ranges of -20 to 400C/200C. Fit for variety of settings, including industrial processes, home automation system, and scientific experiments Working voltage: DC8-25V(Recommend12V) Working current:8-13MA MODBUS RTU protocol, 03 read command, 06 write command. By modifying the 485 address, up to 247 modules can be cascaded (more than 16 please use R485 repeater) Can read temperature and PT100 resistance valueAdapted sensor: PT100 3-wire or 2-wire sensor Specifications: Material:ABS Length:Approx.6cm/2.36in Option Type:-20 to 400C RTU Module,-20 to 220C RTU Module, Power supply voltage: DC8-25V (recommended12V) Working current: 8-13MA MODBUS RTU protocol, 03 read command, 06 write command. Type: PT100 Note: Please allow 1-2cm errors due to manual measurement,please make sure that you do not mind before you order. Due to the difference between different monitors, the picture may not reflect the actual color of the item. Package includes: 1xRS485 MODUBS RTU Module