AstroAI 250PSI-M Digital Tire Pressure Gauge 3-250 PSI 0.1 Resolution
Digital gauge inflates, deflates and reads 3-250 PSI with 0.1 resolution and 1% accuracy
- Accurate readings within 1% across 3-250 PSI range
- Works with ¼ and ½ NPT compressor outputs
- Inflates, deflates and checks pressure in one tool
- Heavy-duty stainless steel and brass construction resists leaks
- Auto power-on with air detection saves battery life
Digital tire gauge with inflator
The AstroAI 250PSI-M combines a digital pressure gauge, inflator, and deflator in one heavy-duty unit. It works with standard Schrader valves and both ¼ and ½ NPT compressor outputs. The LED backlit screen shows readings from 3 to 250 PSI with 0.1 resolution. It runs on two AAA batteries and powers on automatically when pressurized air is detected.
Compressor fit and valve type
Verify that your air compressor has a ¼ or ½ NPT output so the quick-connect coupler seals correctly. The chuck locks onto standard Schrader valves found on cars, SUVs, trucks, motorcycles, RVs, and trailers. Ensure the compressor can supply pressure within the 3-250 PSI measuring range. The unit shuts off after 20 seconds of inactivity to save battery life.
Replaces separate gauge and chuck
This all-in-one tool replaces a standalone gauge, a separate inflator chuck, and a bleed valve. The jump is worth it when you want one calibrated instrument that reads within 1% accuracy across 0.2-17.2 Bar, 20-1724 Kpa, and 0.2-17.5 kg/cm². It is not suited for buyers who need a self-contained compressor or a gauge that operates without an external air source.
Highlights
- Accurate readings within 1% across 3-250 PSI range
- Works with ¼ and ½ NPT compressor outputs
- Inflates, deflates and checks pressure in one tool
- Heavy-duty stainless steel and brass construction resists leaks
- Auto power-on with air detection saves battery life
Specifications
No published specifications for this item yet.
Questions about this item
Does the 250PSI-M include an air compressor or just the gauge and chuck?
The package contains the digital gauge, straight locking chuck, hose and bleed valve; an air compressor is not included and must be supplied separately.
Should I choose the 250PSI-M over the 0–100 PSI or glow-dial models?
Pick the 250PSI-M when you need 0.1 resolution up to 250 PSI for trucks, RVs or trailers; the 0–100 PSI and glow-dial versions top out at 100 PSI.
What does the 1 % accuracy claim mean when I check a tire at 100 PSI?
At 100 PSI the reading will be within ±1 PSI of the true pressure, because the gauge is calibrated to 1 % of the measured value across the 3–250 PSI range.
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