Anyone know anything....

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MoparDaddy

MoparDaddy

Damn Right I Carry!
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About Atlas Copco's "Murphy Swichgage"? I cant find any info on this Oil PSI Gauge. Its in real nice shape. I just dont know how old it is or how much theyre potentially worth or anything.
 

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Google search shows a new one for about 50-60 bucks.
 
I believe that is a common industrial gauge. Those are electrical connections on the bottom which have the ignition (or fuel shut off in a diesel) wired through them, so if oil pressure drops off it kills the engine. It is therefore "Murphy" proof. I have also seen them in coolant temperature guages.
 
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