Should use: Liquid especially the causticity is strong, and then have under the condition of the certain temperature pressure of liquid, simple process condition. The biggest quantity distance: 30m Measure accuracy: ± 10 mms The process link: The PTFE turns over side method Antenna material: PTFE Process temperature: -40 …s 150 ° Cs Process pressure: -1.0 …s 16 barses Frequency scope: 6GHz Signal exportation: Two lines systems/four lines systems 4 …s 20 mAs/HARTs