Stop guessing! Those pencil gauges aren’t even rated for accuracy. They just give you an idea of your pressure. Even then, do find yourself double and triple checking it? For about the cost of a twenty, you can have piece of mind. Cruz Tools TirePro Dial Tire Guage’s high accuracy gauge features a 2.5” diameter easy to read dial, rugged rubber cover to prevent damage, an angled chuck that swivels at both ends, and a pressure bleed valve. Once the reading is taken, the dial won’t move until you depress the bleed valve. Reads 0-60 psi gauge. This is a quality brass construction built gauge that will give you years of accurate readings.