Features: This RS485 MODUBS RTU module with sensor and enclosure is for temperature measurement, offering ranges of -20 to 400C/200C. Made from high-quality ABS material, this module is durable, lightweight, and easy to install. Fit for variety of settings, including industrial processes, home automation system, and scientific experiments 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 value Adapted 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 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 1xSensor 1xOuter Cover