Review on AstroAI Digital Pressure Settings Non Slip Tools & Equipment by Dominic Kimbro

I had an older version that used watch batteries but they cost the same or more than new ones. It uses AAA batteries, which are cheap and easy to replace. The angle and design of this gauge makes it as easy to use as possible without taking up a lot of space in your glove box. The backlight is just an added bonus when used at night.