You can always compare its reading for the 4 tires to the psi shown on the dash (or FordPass App) and occasionally test against a known good gauge. That’s what I do.Bought this about 5 years ago. Liquid filled analog gauge. Works well but can't say for sure how accurate it is.
![]()
About a 1/2 lb. low on the gauge compared to TPMS on the app.You can always compare its reading for the 4 tires to the psi shown on the dash (or FordPass App) and occasionally test against a known good gauge. That’s what I do.
I have this gauge and is within +/- 1 psi. Cost $10. After 4 years of use and kept in the vehicle, it will no longer hold the pressure which is fine bc the gauge is large and easy to read.
![]()
Guess I'm old school. Prefer the analog dial no batteries to worry about.![]()
About:
The Accutire MS-4021B is part of the Tire pressure gauges test program at Consumer Reports. In our lab tests, Tire Pressure Gauges models like the MS-4021B are rated on multiple criteria, such as those listed below.
Accuracy: Accuracy is based on a comparison of each model against a known calibrated master gauge at various pressures, and at cold, room, and hot temperatures. Cold and hot temperatures simulated storing the gauge in a car in winter and summer temperatures.
Ease of use: Ease of use is primarily an assessment of pressure readability and how easy is it to take a pressure reading on an inflated tire.
Durability: Each model was checked for accuracy after a drop test of approximately 30-inches from a table to judge durability.
~~~
Those are the top 4 gauges.
I've used the Accutire MS-4021B (or very similar) for decades. It's a good deal at $10.
Me too especially in a vehicle since that’s where I leave my air gauge. But for whatever reason digital models appear to have better accuracy.Guess I'm old school. Prefer the analog dial no batteries to worry about.
Nothing wrong with that.Guess I'm old school. Prefer the analog dial no batteries to worry about.
