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I always do that in my cars. I get a sender in the 12#-15# range and get a small flashing LED from the local auto parts. The LED costs less than $5 and can be stuck in almost anywhere and can be seen even in daylight.

It will always get my attention and in time to get ahead of any potential damage.



That's what I'm looking to do, except use a 30lb switch so there is plenty of time to shut off. I know I've seen 30lb switches somewhere.

Yeah, it's got a smallblock.