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The syringe heater from Watlow was developed for the unique needs of medical injection applications. The heated syringe provides a heated fluid and drug delivery solution that maximizes patient comfort while reducing risk.  The versatile Watlow heated syringe system produces consistent results by reducing temperature and viscosity variations.

Heater configurations include silicone/wire or polycarbonate/foil configurations to deliver flexibility and convenience. Both heater forms are designed to "snap" on to the syringe with one hand and hold firmly during the procedure.

The polycarbonate/foil configuration is constructed using a clear polycarbonate laminate, which allows technicians to view fluid levels and monitor for air bubbles. Smooth outer surfaces and a radius on all inside corners facilitate cleaning. The syringe heaters also house an overmold containing an electronic controller and/or sensor to deliver years of accurate, trouble free service and warm solutions to precise specifications. Redundant controller may also be incorporated if required.

Precise fluid temperatures greatly increase patients' comfort levels. Body temperature injections are more easily introduced to patients and have reduced viscosity. Heated contrast media minimizes patient risk and is particularly beneficial for patients in a frail or distressed condition.


Material Maximum Operating Temperatures Maximum Watt Densities
°F °C W/in2 W/cm2
Polycarbonate laminate  185 85 2 0.3
  • Length: 5 in. (127 mm) max
  • Heater diameter: formed to fit syringe -- typical diameter is 2 in. (50 mm) to 6 in. (150 mm)
  • Voltage: dependent on application, over 48V may impact agency approvals
  • Control accuracy: 5.4°F (±3°C)
  • Max. operating surface temperature: 185°F (85°C)
  • Approximate control pod dimensions: 1 x 1 x 2.75 in. (25 x 25 x 70 mm)
  • Cord pull strength: Up to 20 lbs


  • Medical injection applications

Features & Benefits:

Features Benefits
Long operational life
  • Improves system reliability
  • Reduces equipment down time—minimizes the need to reschedule procedures
Two heater configurations provide flexibility and adaptability
  • Provides maximum flexibility to accommodate various syringe sizes (silicon wire)
  • Provides high tech look and functionality (polycarbonate/foil)
Customizable to most OEM requirements
  • Allows over-mold to be modified and color matched for a seamless, integrated appearance
Optional precise, repeatable temperature sensing control
  • Maximizes patient comfort, minimizes patient risk
  • Increases the consistency of test results by eliminating temperature and viscosity variations
  • Improves product life versus bimetal thermostats