Temperature Indicators

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Thermomelt HEAT-STIK markers are a quick, low-cost method to accurately measure surface temperatures of various metals and equipment. Available in 88 Fahrenheit and 32 Centigrade temperatures, the stick-in-holder design provides convenience and durability for long-lasting use in the workshop or in the field.

Please note that the color of the Thermomelts are not a part of their function, since the temperature signal consists of melting. Indicator color is subject to change without notice.



    When the stick melts, the precise temperature is reached

    Long-lasting stick is 33% bigger than competition

    Accurate to within +/- 1% of Fahrenheit and +/- 3% Celsius rated temperatures; no need for sensor calibration

    Ideal for: pre-heating, post-weld heat treating, interpass temperature monitoring, stress-relieving and annealing

    Protective holder, shirt-clip and adjustment ring prevents breakage and improves handling

    For low corrosion (low chlorides/halogens) applications, see Thermomelt - Low Corrosion Temperatures

    Meets welding codes: AWS D1.1, ANSI/ASME Code B32.1 & B31.3, ASME Code Sec. I, III, and VII, NIST Traceable

    Made in U.S.A.                                                                                                                                     8pt For Prop 65 warning information, please click here: /assets/1/7/Thermomelt_Warning_Labels.pdf.docx



    Ship building and repair

    Bridge fabrication

    Metal fabrication

    Forge and casting foundries

    Railroad industry

    Steel mills and warehouses


    Steel and iron

  • Details:

    86400      100ºF (38ºC)
    86409      109ºF (43ºC)
    86418      113ºF (45ºC)
    86436      125ºF (52ºC)
    86445      131ºF (55ºC)
    86454      138ºF (59ºC)
    86463      150ºF (66ºC)
    86472      163ºF (73ºC)
    86481      175ºF (79ºC)
    86490      182ºF (83ºC)
    86499      188ºF (87ºC)
    86508      194ºF (90ºC)
    86517      200ºF (93ºC)
    86522      206ºF (97ºC)
    86526      213ºF (101ºC)
    86535      219ºF (104ºC)
    86544      225ºF (107ºC)
    86553      238ºF (114ºC)
    86562      250ºF (121ºC)
    86569      256ºF (124ºC)
    86571      263ºF (128ºC)
    86580      269ºF (132ºC)
    86589      275ºF (135ºC)
    86598      282ºF (139ºC)
    86607      288ºF (142ºC)
    86616      294ºF (146ºC)
    86625      300ºF (149ºC)
    86634      306ºF (152ºC)
    86643      313ºF (156ºC)
    86652      319ºF (159ºC)
    86661      325ºF (163ºC)
    86670      331ºF (166ºC)
    86679      338ºF (170ºC)
    86688      344ºF (173ºC)
    86697      350ºF (177ºC)
    86715      375ºF (191ºC)

    86733      400ºF (204ºC)
    86751      425ºF (218ºC)
    86769      450ºF (232ºC)
    86787      475ºF (246ºC)
    86805      500ºF (260ºC)
    86823      550ºF (288ºC)
    86841      600ºF (316ºC)
    86859      650ºF (343ºC)
    86868      700ºF (371ºC)
    87021      1425ºF (774ºC)
    87057      1550ºF (843ºC)
    87129      1950ºF (1066ºC)
  • 86402      50ºC
    86404      75ºC
    86401      100ºC
    86408      125ºC
    84664      150ºC
    86410      175ºC
    86516      200ºC
    86405      225ºC
    86563      250ºC
    86407      275ºC
    86626      300ºC
    86698      350ºC
    86734      400ºC
    86932      1000ºC
    86960      1100ºC

            Click here for Thermomelt® SDS