National Basic Sensor manufactures a complete line of thermocouples and RTD’s from single elements to complex temperature measurement systems. We also carry quality accessories and instrumentation to compliment our sensors and meet your process control and automation needs.

NBS can supply you with N.I.S.T. traceable calibration on thermocouples and RTDs. Their calibration lab is ISO 9001:2008 certified and 17025 compliant. They calibrate over a temperature range of -78°C to 1454°C.


  • Base Metal
  • Noble Metal
  • Assemblies
  • Double Tube
  • Vacuum Furnace
  • Wire
  • Bayonet


  • Leadwires
  • Leadwires and Welded Hex Fitting
  • Connection Head
  • Connection Head and Spring Loaded Hex Fitting
  • Sheath Spring
  • Tube Cutter
  • RTD Tool Kit