ST Series thermocouples

RKC specializes in very small and fast thermocouples for situations where normal sensors are too large in size.

ST-50 / ST-51 Series film-type ultra fast thermocouples

Ultra fast film type K thermocouple. Smallest ST-50 has a 50μm tip with response time of only 0.03s. (ambient-250°C in paraffin) 

  • sensor type: type K thermocouple
  • temperature range:
    • ST-50: 0°C to +300°C
    • ST-51: -40°C to +300°C
  • element diameter:
    • ST-50: 50μm, 100μm (length 100mm), 100μm (length 300/500mm)
    • ST-51: 50μm
  • optional:
    • W-ST50A connector cable (various connection possibilities incl. DP-350/700 connector)
    • STM-A magnet holder

– Leaflet ST-50 / ST-51 series
– Leaflet STM-A magnet adaptor

Click here to ask for a quotation for the ST series.

ST-50 series ultra thin fast thermocouple
ST-50 fast response thermocouple
ultra fast response
ST-50 ultra fast thermocouple

Just stick the thermocouple to the object

ST50 & ST51 fast type K thermocouple
W-ST50A connector cable
STM-A magnet type temperature sensor

STM-A magnetic holder for temperature sensor

ST-55 / ST-56 Series temperature sensors for small object surface

Small diameter type K thermocouple for measurement of small objects.

  • sensor type: type K thermocouple
    • ST-55: thermocouple with joint for longer length
    • ST-56: seamless thermocouple
  • maximum operating temperature:
    • measuring tip: 
      • teflon coating: +300°C
      • ceramic coating: +500°C
    • coating section: +260°C
    • ST-55 joint section: +170°C
    • ST-55 extended section: +260°C
    • adhesive tape: +300°C
  • accuracy: +/- 1°C
  • element diameter:
    • ST-55: 
      • teflon coating: 0.076/0.127mm
      • ceramic coating: 0.1/0.2mm
      • joint section: 0.127/0.254mm
    • ST-56: 
      • teflon coating: 0.076/0.127/0.254mm
      • ceramic coating: 0.1/0.2/0.32mm
  • response time:
    • element diameter 0.076mm teflon coating: 0.2 s. (63% response), 0,8 s. (95% response)
    • element diameter 0.1mm ceramic coating: 0.2 s. (63% response), 0.5 s. (95% response)

– Leaflet ST-55 / ST-56 series

Click here to ask for a quotation for the ST series.

ST-55 and ST-56 small thermocouples
ST-55 and ST-56 small thermocouple
Measuring point on the tip
measure temperature of small objects with small thermal capacity

DP350 / DP700 handheld thermometers

Handheld thermometers for use with the ST series thermocouples.