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The Agilent 536 NPT Sensor (L6141303) is a Thermocouple Gauge Tube with integrated baffle.

It is a welded 304 steel version of the 531 sensor  with an additional baffle to greatly extend the sensor life when exposed to condensable gases.


  • Freeze drying
  • Low pressure distillations
  • Foreline monitoring
  • Transformer dry out
  • Total Range: 1 millitorr to 760 Torr (continuous and monotonic from atmosphere down to 5 Torr)
  • Range with Accuracy: .001 Torr to 5 Torr
  • Maximum bake-out temperature: 150 °C
  • The Agilent 536 Vacuum Sensor by Agilent is welded 304 stainless steel with an additional baffle that greatly extends the tube life when exposed to condensable gases in demanding applications like distillations, vacuum processing, and laboratory research using schlenk lines
  • Provides a continuous and repeatable indication of pressures
  • The thermocouple and heater are noble metal to minimize any possible affect of contaminants on sensor performance
  • Certifications: CE Certified and RoHS compliant
  • Maximum bakeout temperature: 150 °C

Compatible Gauges:

Varian Agilent 536 Thermocouple Gauge Tube Sensor with Baffle, 1/8 in. male NPT Flange, SS, L6141303


Data Sheet

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Agilent 536 NPT Sensor L6141303
Agilent 536 NPT Vacuum Sensor | Thermocouple Gauge Tube 1/8″ NPT L6141303 .001 to 5 Torr accuracy