Set the reference needle to your target pressure based on information found on the door placard, lock the chuck onto the valve stem, and compare the two needles. If the pressure needle sits above the reference needle, bleed air with the deflation button. If it sits below, add air. When the needles line up, your mission is accomplished, move on to the next tire.
What is a dual-needle tire pressure gauge?
A dual-needle tire pressure gauge is an analog dial gauge with two needles. One shows the tire’s live pressure, and the other is a reference needle you set to your target pressure. Instead of reading a number and comparing it with one in your head, you just check whether the two needles overlap each other. This feature is unique to the industry and not a feature you will easily find anywhere else online.
The SKÖG® Platinum Tire Gauge is our own dual-needle gauge. SKOG’s product page puts the idea simply: “set your target pressure once, then match the needles as you check each tire.”
Where does the target pressure come from?
Your target pressure comes from the vehicle’s Tire and Loading Information placard, usually on the driver’s door jamb, or from the owner’s manual. It is not the “max PSI” molded into the sidewall, which is the tire’s limit.
Placard pressures are cold-tire numbers, so set up and check before driving. Many vehicles list different front and rear pressures. For off-road air-down targets, the number is your call, guided by the tire and vehicle manufacturer.
How do you use it, step by step?
Set the target, lock on, read, adjust, and remove. SKOG’s product page shows the sequence as four steps: Lock On, Read True, Air Down, Remove.
- Set the target. Move the reference needle by hand to your placard pressure. SKOG’s Amazon listing describes it as a “second manually controlled needle.”
- Firmly Push on the Chuck. After removing the valve cap, fully push the RatchetSeal™ chuck straight onto the valve stem until you face resistance. Do not press the release button on the chuck when applying, it is only for release of the pressure gauge when your work is complete.
- Read true. Compare the pressure needle with the reference needle.
- Air down if high. If the pressure needle is above the reference, briefly press the deflation button in short bursts and watch the needle fall toward the reference. Readings of the gauge are only accurate without the deflation button pressed.
- Release. Release the chuck from the valve stem by simply pressing the release button on the and pull back from the tire.
- Low? Add air and recheck. If the pressure needle is below the target reference, add air with your inflator, then lock the gauge back on and match the needles again.
- Replace the valve cap and move to the next tire.
Why use a second needle instead of just reading the number?
Because matching two needles is easier to visualize compared to reading the fine marks on any tire gauge on each tire. On a dim driveway or a dusty trailhead, “are the needles lined up?” is an easier question than squinting at tick marks and remembering a number.
One rule makes it work: reset the reference needle whenever the target changes. If your front and rear placard pressures differ, set it for the front axle, do both fronts, then reset it for the rear. The same goes for airing down, where you might set a lower trail target and then return to the placard number before pavement.
What are the SKÖG® Platinum Tire Gauge’s published specs?
The gauge reads 0–100 PSI, is built to ANSI B40.1 accuracy (±1.5%), and runs without batteries. Everything below is as listed on skogtools.com and SKOG’s Amazon listing.
The chuck fits Schrader (8V1) valve stems, the standard valve on car and truck tires. The 7″ swiveling hose helps on stems that sit deep in a wheel.
How do you keep a dial gauge reading well?
Treat it like a measuring tool, not a tire iron. Keep it in its pouch, don’t drop it, and keep grit out of the chuck. With nothing connected, the needle should return to its resting position. If it doesn’t, or if the gauge ever takes a hard fall, compare it against a second gauge you trust before relying on it. More on that in our gauge accuracy guide.