There are so many fast thermocouple and thermistors out now but the therrmocouple fades over time and needs recalibrating and newer therms put in a calibration switch. The
thermapen is made in worthington, UK by electronic temperature instruments, Ltd and marketed throughout the usa through
thermoworks in utah but isn't a thermorks product and warranted 2 years and no warranty purchased elsewhere.
Thermoworks has sales demos, open box, cosmetic blemished., broken packaging and returns sales that no other therm company offers. The 2 year warranty doesn't justify the price because
thermoworks has a dept just for repairs and recalibration that no one should know about but its common knowledge, meaning the price doesn't reflect the warranty. I would do what you did. I did that with other hinged tools. The javelin, formerly thermowand is a smaller thermistor sensor $25 lifetime guarantee, 4 second read a lot of us on SMF bought before xmas 2014. My hinge switch just failed so I have a new one without having to send it back. No therms other than maybe
thermoworks brand are made in usa so tough to figure who to give money to. Buy the warranty because all therms are becoming 2-5 second reads. And don't spend money to figure out if the recalibration from mailing it back to thermoworks is your fix. I commented on youtube about
thermapen's speed test againt the basic javlin and I said your test with a different
thermapen was slower. Thermoworks removed it from youtube. Kinda like the joke about what color is fastest.
Thermapen was the ground breaker in speed but not in longevity and needs to offer a warranty that relects the price.