AP Astro Pneumatic Tool Company Astro 3018 digital tire inflator 3.5" — 21" braided hose, 0.1 PSI precision

The Astro 3018 is a compact digital tire inflator with a large backlit LCD, a durable 21" stainless braided hose, and 0.1 PSI resolution for precise inflation, deflation and pressure checks.

Compact enough for a glovebox or toolbox, the Astro Pneumatic Tool 3018 combines accuracy and ruggedness in a handheld gauge/inflator. It reads in PSI, BAR, KPA or KGF, runs on two AAA batteries with extended runtime, and includes a rubber sleeve to protect the unit from drops and everyday workshop wear.

How precise is the 3018 for checking tire pressures?

The 3018 provides fine-grain readings with 0.1 PSI resolution, suitable for vehicles and TPMS verification. Accuracy is tightly controlled across the common pressure range so you can trust small adjustments.

• Resolution: 0.1 PSI increments
• Measuring range: approximately 3–175 PSI
• Units selectable: PSI, BAR, KPA, KGF
• Accuracy specified across low and high ranges for consistent results

What makes its hose and connections more durable?

Astro fitted the 3018 with a 21" stainless-steel braided hose to resist kinks, cuts and oil exposure compared with standard rubber hoses. The braid helps the hose keep shape and reach awkward valve stems without strain.

• 21" stainless steel braided hose for abrasion resistance
• Longer reach for truck, SUV and deep-rim valves
• Sturdy chuck and valve connection to avoid leaks while inflating

How long do the batteries last and how easy is power maintenance?

The inflator uses two AAA batteries in a simplified installation that extends run time, delivering many hours of service between battery changes. The design prioritizes quick swaps so roadside or shop work isn’t delayed.

• Power: two AAA batteries (easy access compartment)
• Estimated battery life: hundreds of operating hours under normal use
• Low-power, backlit LCD for visibility without excessive drain

Can I inflate and deflate with the same tool?

Yes—the 3018 is built to inflate and to bleed air for precise pressure setting. The large backlit face makes it simple to monitor changes while you add or release air.

• Inflate and deflate functions integrated into the handheld unit
• Large, backlit digital display for clear readings in low light
• Protective rubber sleeve improves grip and shock resistance

Who this is for: The Astro 3018 suits drivers, mechanics and DIYers who need an accurate, portable inflator that stands up to rougher environments. It’s helpful for passenger cars, light trucks, SUVs, and anyone using TPMS who requires better-than-average resolution and a long, durable hose for easier valve access.