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Rosemount 644 Smart Temperature Transmitter
Rosemount 644 Smart Temperature Transmitter with optional indicator. Dual sensor capability that provides a 4 to 20 mA signal, HART, or FOUNDATION Fieldbus protocol. Available transmitter-sensor matching,
| Type | Programmable |
| Style | Head Mounted, Rail Mounted |
| Sensor input | RTD, Thermocouple |
| Number of sensor inputs | 2 inputs |
| Output | 4-20 mA |
| Communication protocol | Hart 5, Hart 7 |
| Local indicator | Optional |
| Wireless | No |