Thermocouple with a button?

https://www.levcocare.com/2011/12/02/thermocouple-with-a-button-wk-48-2011/
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On Thu, 27 Dec 2018 10:40:20 -0800 (PST), Molly Brown
Thanks You have filled my Holiday Heart with the Joy of the Season ! . .. an on-topic post ! .. who'd - a - thunk - it ? :-) John T.
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