Just had a wireless meat thermometer suddenly fail in the middle of a brewing session (Belgian Tripel, can't wait ...) [*]. The indicated temp shot up about 50F. Resetting the uC, display and so on won't help. It's going to be replaced under warranty but being the curios one I measured then sensor. It reads about 45kohms in one direction and about 70kohms in the other. No diode slope to be seen. Since diodes normally fail fully open or shorted I wonder what goes on. What is inside the probe tips of those? [*] This Belgian Tripel was the first batch where the fermentation started almost digitally. 20h of nothing, then a loud gurgling and an evil hiss. Kraeuser (the foam) plugged the air lock, it lifted the very hard to open fermenter lid and made a mess. -- Regards, Joerg

Why not use a thermocouple? They're reliable and many low-price DVMs have thermocouple inputs. -- John Larkin Highland Technology, Inc picosecond timing precision measurement jlarkin att highlandtechnology dott com

Meat thermometer, what kind of sensor is in there?

Dec 19, 2016 61 Replies

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Lasse Langwadt Christensen 9 years ago

maybe the standard they are reviewed against have changed, so the old $15 cam you have wouldn't get a higher rating than a potato ;)

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Joerg 9 years ago

No, they are really worse. Years ago you could easily get a 720p camera with adjustable focus for that amount. No more. Finally I found a Logitech C270 today for $19 which can be opened to expose the focus adjust wheel. I can hack that one.

Regards, Joerg http://www.analogconsultants.com/

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