I bought it in November 2020. I didn't have to use it until December 30, 2020 (today) when I was working with a 70t industrial air conditioner! a few pounds of R410A in circuit #2; and I looked at the high side sensor P/T chart (to compare it to my liquid line temp and see what the subcooling was). And I just realized that P/T charts are in Celsius not Fahrenheit! ๐คI managed to convert Celsius to Fahrenheit, but I wouldn't have bought this sensor if I had noticed this very important detail when I bought it! Finally, I don't use the Celsius scale for anything in my current work. To be honest, my mistake is that I was too impulsive and bought sensors without reading the specs properly: I learned from it! Aside from being a bit more complicated to use (I'm not sure how long those plastic spacers will last!), it's overall good value for money! PS:. on the other hand, my colleagues don't ask to borrow it because they don't want to bother converting C to F!๐๐)
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