On Mon, 15 Aug 2016 01:21:05 -0700, W > wrote:

>Does anyone sell a good temperature alarm that I can attach to the side of
>my burning vat of fat and have it go off when I exceed some threshold (e.g.,
>350F)?

What you want is a candy thermometer. There are lots and lots of them. Some
have alarms. Here's one:

https://www.amazon.com/CDN-DTC450-Di.../dp/B00279OPDU

Don. www.donwiss.com (e-mail link at home page bottom).