Autoguardian 90-120 PSI Air Pressure Switch For Train Horns – 1/4 NPT Thread, Tank Mount, 3-Year Warranty

So, you got them train horns and they sound awesome, but the compressor setup needs a pressure switch?

This is the one you want.

It's an Autoguardian unit, and it's set to kick on around 90 PSI and cut off at 120 PSI.

It's a direct replacement part, so it's easy to swap in if your old one dies.

The thread is standard 1/4 NPT, which should fit most tanks.

It's a performance part, but it's universal enough to work on most systems as long as you've got the right thread.

And get this, it comes with a 3-year warranty.

That's pretty solid for a little switch.

It's brand new, tank-mounted, and ready to wire up.

If you're building a system from scratch or just replacing a faulty one, this autoguardian unit will get your horns blasting again.