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Rosemount™ 648 Wireless Temperature Transmitter
The Rosemount 648 Wireless Temperature Transmitter offers best-in-class wireless accuracy and stability for process monitoring.
This durable transmitter is designed with a dual-compartment housing for field reliability. When combined with Rosemount X-well™ Technology and the Rosemount 0085 Pipe Clamp sensor, this transmitter can provide accurate measurement of process temperature via an in-transmitter thermal conductivity algorithm, eliminating the need for a thermowell or process penetration.
Rosemount™ 648 Wireless Temperature Transmitter


Single sensor capability with universal sensor inputs (RTD, T/C, mV, ohms)
Output Signal
WirelessHART® protocol
Dual-compartment field mount
Large LCD display with percent range graph
Basic diagnostics including open/short sensor diagnostics
Calibration Options
Transmitter-sensor matching (Callendar-Van Dusen constants)
Hazardous location, marine type, see full specs for complete list of certifications
Update Rate
1 sec. to 60 min., user selectable
Power Module Life
Up to 10-year life, field replaceable (order separately)
Antenna Type
External (standard and extended range)


  • WirelessHART® technology is secure, cost-effective and delivers >99% data reliability
  • Best-in-class wireless accuracy and stability for process automation
  • Durable dual-compartment housing offers added field reliability
  • Rosemount X-well Technology measures temperature without a process penetration for reduced design, installation and maintenance costs
  • Transmitter-sensor matching produces better accuracy, matching exact sensor characteristics with the transmitter
  • LCD display offers access to measurement and diagnostic information in the field, enhancing process visibility
  • SmartPower™ module provides up to 10-year maintenance-free operation and field replacement without transmitter removal
  • Easy installation enables quick instrumentation of measurement points without the cost of wiring