Marshall Instruments LS00100 Silver Dial Fuel Pressure Gauge

Came well packaged and secure as any precision instrument should be.Price was Middle of the road compared to other gauges.So far the unit functions perfectly in my FI fuel supply line. Happy with the product 👍👍.The attached photo is current, 06/05/23. The vehicle has sat for 3+ days and the gauge is still holding pressure. That's really impressive. Purchase with confidence ✨️.Cheers 🍻, G.

Seems to be very high quality. The printing is very nice and it is accurate

Wanted a inline pressure gauge

Works perfect on an EFI fuel rail. Makes trouble shooting a breeze

Nice shiny gauge. Hopefully it is accurate. Surprised to find my fuel pressure running at 30 expected it to be higher. looks great, hasn't leaked yet.

Gave it 4 stars across the board because it's the first one I ever bought. Nothing to compare it to.Know ahead of time how high your fuel pressure is supposed to be. Mine is on the low side.

I bought this to replace a suspected bad fuel lab gauge and sure enough this gauge matched my electronic fuel pressure gauge perfectly... I'm sure it'll have slight variations with a hot engine vs a cold one because of the fluid but way more accurate than the fuel lab was, which was reading 10psi less than the Marshall.

Gauge looked like it was good quality out of the box. It initially read correctly but over the last month I have noticed the pressure is slowly creeping high on the gauge. I have changed regulators to check and the pressure stays high and inaccurate. Nice looking gauge but does not appear to be able to handle +50 psi.