Review on 🔵 Yellow Jacket 49138 3-1/8" Blue Compound, 30", 0-350 psi, R-22/404A/410A Gauge Degrees F (Pack of 2) by Ryan Sandell

If you're a DIYer like me, you might need this sensor. You've got a cheap set of headers and you're trying to do your best, but do you really trust your Chinese gauges? No? That's right, you shouldn't. They lie. So you need at least one authoritative sensor like this. I use it with a 1/8 to 1/4 mfl quick disconnect so I can mount it anywhere, next to the manifold or on its own. Calibration purpose aside, this quick connect pressure gauge is great for leaving in a nitrogen pressurized system for a while and is nothing more than just a small pressure gauge to check for leaks. So you lock out your kit and take it home and that sensor can be left under the closed hood overnight. I have nothing negative to say about how this sensor works. It's a yellow jacket! Perfect.