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Ring terminal surface temperature sensor

CTS’s 6009 Series of ring lug NTC temperature sensors offers a cost-effective surface temperature sensing solution for a variety of HVACR, medical, water heating, and food service applications. This sensor series was designed for screw-in-place mounting in applications that require temperature protection. CTS can customize these sensors in a variety of ways. They are available in a variety of ring lug sizes and can be specified with or without insulated leads. Sensor resistance values and accuracy, as well as cable length and color are all able to be specified.

Series Resources


  • NTC thermistor assembly
  • Standard lug sizes #4 – #12 with additional styles available
  • Typical wire sizes #24 – #28 AWG
  • Housing material options: tinned copper or nickel-plated steel
  • Fast temperature response
  • RoHS compliant options available

Mount on top of flat plate or other surface
Sensor TypePlatinum RTD Thermistor
Sensor Mount#4 screw / #6 screw / #8 screw
MaterialTin plated copper, Nickel plated copper
Temperature Range-40°–125°
Beta Value3977, 3435, 3690, 4260, Custom
Resistance10000 / 100000 / 2252 / 3000 / 30000 / 5000 / 50000 / Custom / Pt100 / Pt1000
Tolerance0.1C (0C to 70C) / 0.2C (0C to 70C) / 1% / 2% / 5% / Custom

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Where to Buy

CTS components are stocked and sold through a global network of distributors & sales representatives. Select your preferred partner in the link below.

Where to Buy