Phoenix Contact 2908664 A temperature transducer can send data from up to two sensor types at a time, including RTD and TC sensors as well as those measuring resistance or voltage with currents between 4 mA to 20 mA. The device also supports HART protocols and comes with built-in signal conditioners that meet SIL functional safety standards, offering standard configuration options along with a Safety Integrity Level of up to SIL level 2.