AstroAI Digital Tire Pressure Gauge Inflator 3–250 PSI Range, Swivel Brass Chuck & Backlit LCD

The AstroAI 3-250 PSI Digital Tire Pressure Gauge Inflator is a professional-grade air tool that measures and adjusts tire pressure precisely, with an ANSI B40.7 Grade 2A calibration, a swivel brass chuck, and an easy-to-use trigger for inflate/deflate control.

This compact, heavy-duty inflator combines an accurate digital gauge and a durable inflator body to simplify routine tire care for cars, SUVs, trucks, RVs, motorcycles, and bicycles with Schrader valves. Designed for garage use, roadside adjustments, and travel preparation, it reads pressures in four units and gives clear, backlit results while resisting wear from regular shop use.

How accurate is the pressure reading and which units does it show?

The unit is professionally calibrated to ANSI B40.7 Grade 2A accuracy with ±0.5% full-scale tolerance and 0.1 PSI resolution, providing finer detail than most consumer gauges. A stable LCD displays pressure in multiple selectable units so you can match vehicle specifications without conversion guesswork.

• Calibration: ANSI B40.7 Grade 2A (±0.5% full scale)
• Resolution: 0.1 PSI for precise adjustments
• Selectable units: PSI, BAR, kPa, kg/cm²
• Range: 3–250 PSI to cover light vehicles through heavy-duty tires

What controls let me inflate and deflate with one tool?

The AstroAI inflator integrates a palm-grip trigger to add air and a push button to vent pressure, so you don’t need separate tools to fine-tune pressure. The handle is shaped to reduce hand fatigue during longer sessions and the 360° swivel chuck reaches awkward valve stems without twisting your wrist.

• 3-in-1 operation: inflate, hold, and release from the same unit
• Palm-grip trigger for comfortable pumping
• Deflate button for quick pressure reductions
• 360° swivel brass chuck to access angled valves easily

Is this inflator rugged enough for garage and roadside use?

Built for frequent use, the tool pairs solid brass fittings with a crush-resistant rubber hose and a protective chuck cover to prevent valve damage. The backlit LCD and built-in LED flashlight help with visibility in dim garages or nighttime roadside checks, while the automatic idle shutoff conserves batteries between uses.

• Durable brass chuck and brass compressor fitting for leak resistance
• 19.7" rubber hose resists kinks and crushing
• Backlit LCD plus integrated LED flashlight for low-light work
• Auto power-on with airflow and auto-shutoff after inactivity

Which vehicles and valves are compatible with this inflator?

The tool connects to standard 1/4" NPT compressors and works directly with Schrader valves on cars, light trucks, SUVs, RVs, and most motorcycle and bicycle inner tubes. It does not include adapters for Presta valves, ball needles, or mattress nozzles, so you’ll need compatible adapters for those applications.

• Works with: cars, SUVs, trucks, RVs, motorcycles, bicycles (Schrader)
• Compressor interface: 1/4" NPT fitting
• Adapters not included: Presta, ball needles, air mattress nozzles
• Best for Schrader-valve maintenance and shop inflating tasks

Who is this for: The AstroAI 3-250 PSI Digital Tire Inflator is aimed at drivers, home mechanics, and professional technicians who want a single, accurate, and durable inflator for routine tire maintenance and roadside troubleshooting. If you need precise pressure control, a rugged build for repeated use, and easy visibility in low light, this tool covers those needs—just add any specialty adapters required for non-Schrader valves.