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Rosemount™ 5408 Level Transmitter - Non-Contacting Radar
The Rosemount™ 5408 Non-Contacting Radar Level Transmitter uses enhanced technology and Human Centered Design to deliver accurate, reliable measurements on both liquid and solid materials.
Using two-wire FMCW technology the Rosemount 5408 deploys a continuous echo to maximize radar signal strength and produce a more robust and reliable measurement. Delivering ease-of-use at every touch point, the Rosemount 5408 uses an intuitive software interface to guide the operator through installation, commissioning, proof-testing and maintenance. Safety certified to IEC 61508 for SIL 2 applications, the Rosemount 5408:SIS reduces cost of risk, increases efficiency and protects people and the environment.
Rosemount™ 5408 Level Transmitter - Non-Contacting Radar


Standard: ± 0.08 in. (± 2 mm)
Ultra accuracy: ± 0.04in. (± 1mm)
Measurement Range
131 ft (40 m), 82 ft (25 m) for Rosemount 5408:SIS in Safety mode
Operating Pressure
1450 psi (100 bar)
Operating Temperature
-76 to +482 °F (-60 to +250 °C)
Power Supply
4-20mA/HART: 12-42.4 VDC (12-30 VDC in Intrinsically Safe installations)
Foundation™ Fieldbus: 9-32 VDC (9-30 VDC in Intrinsically Safe installations and 9-17.5 VDC for FISCO)
Communication Protocol
4-20mA HART® (2-wire loop-powered), Foundation™ Fieldbus
ATEX, IECEx, FM, CSA, 3-A, CRN, see full specs for complete list of certifications
IEC 61508 certified to SIL 2
TÜV tested and WHG approved for overfill prevention
Antenna type
Cone antenna, Process seal antenna, Parabolic antenna


  • Low 12V dc lift-off voltage
  • Immune to intermittent power loss
  • Unique PTFE seal design eliminates the need for o-rings
  • Model tailored to SIS requirements, certified to IEC 61508 SIL 2
  • Solid measurement with unique solids algorithm
  • Process seal antenna for applications with heavy condensation and aggressive medias. Also available with Tri Clamp connection.
  • 3-A certified for hygienic applications