Review on Winters Economical Pressure Internals: Precision Testing, Measuring & Inspecting by Rashan Jimenez

Very good pressure gauge, going for my third because I can be careless at work and fall or exceed the pressure. But for your hard-working dollar, it's well worth it if you take care of it. I route mine from factory air to a 90 degree valve, to a pressure regulator, then from a Winters gauge to an air cartridge. I use this pressure gauge to check and monitor coolant systems on diesel buses. I use this to apply as little as 16psi or 11psi depending on the engine to find coolant leaks and check for repairs. Apply the prescribed pressure, shut off the air supply to the workshop, watch the manometer, I hope the arrow holds after the repair. Very easy. If I break the next one, I'll just buy 2 at a time. Just a pity they didn't offer some kind of wellies.