Rosemount 3144P Temperature Transmitter
The Rosemount 3144P Temperature Transmitter provides superior accuracy,

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 stability, and reliability – making it the industry-leading temperature transmitter used in critical control and safety applications. 
The 3144P can be ordered with either 4–20 mA/HART or a completely digital FOUNDATION fieldbus protocol. It has the capability to accept either single-sensor or dual-sensor inputs. This dual-sensor input capability allows the transmitter to accept simultaneous input from two independent sensors, enabling measurement of differential temperatures, averaging temperature, or redundant temperature measurement.
The transmitter can be configured for a variety of sensor inputs: RTD, thermocouple, millivolt, or ohm. The 3144P (HART) is approved for use in Safety Instrumented Systems (third party validated metrics are available for the 3144P. Testing done per IEC 61508 for Safety Instrumented Systems).