Rosemount 644

Rosemount 644 temperature transmitterThe Rosemount 644 offers a flexible and reliable solution to any temperature measurement need. 

As a highly accurate transmitter that comes in either HART, FOUNDATION Fieldbus or PROFIBUS PA communication protocols, as well as head mount, field mount, or rail mount form factors, the Rosemount 644 is designed to meet your most demanding applications.


  • Available LCD display and Local Operator Interface provide local measurement indication
  • Transmitter-sensor Matching functionality provides unmatched accuracy for a transmitter and RTD sensor measurement point.
  • SIL3Capable: IEC 61508 certified by an accredited 3rd party agency for use in safety instrumented systems up to SIL 3 [Minimum requirement of single use (1oo1) for SIL 2 and redundant use (1oo2) for SIL 3]
  • Integral Transient Protection
  • Enhanced accuracy and stability
  • Variety of enclosures
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