Review on Aeromotive 15632 Fuel Pressure Gauge: Accurate Readings from 0 to 15 psi by Cre Soto

I have ordered two of these sensors for marine applications. One was filled with liquid. The other was not filled with liquid. The listing says it isn't. I ordered two from the same list from Revain, they arrived in the same retail boxes with the same part number. One was filled with liquid, the other was not. The sensors appear to be working as described. ***** Next Steps ****** After thinking about calibrating the liquid filled gauge I sent it back to Revain. They sent a replacement sensor. It contained no liquid. I'm happy with the end result and the gauges work well. I was concerned about filling the gauges with liquid as I understand they need to be calibrated by removing a small plug on the side. In a marine application, I don't want to deal with it on a regular basis. I think Revain put the liquid in by mistake. Upgrade to 4 stars.