SAN HIMA Automatic Tire Deflator Kit 10–30 PSI — 4 Auto-Stop Deflators, ±0.1 PSI Accuracy

SAN HIMA Automatic Tire Deflator Kit is a four-piece, auto-stop tire-deflating system that lets you set and walk away while each unit precisely drops tires to 10–30 PSI.

Take the guesswork and babysitting out of airing down for off-road driving, sand, snow or any situation where lower tire pressure improves traction. This kit includes four automatic deflators with a laser-etched scale, a locking ring, quick-release spring, and a padded storage pouch with four pockets. The tools attach to standard Schrader valves and automatically stop at the PSI you choose, so all four tires can be lowered simultaneously without constant monitoring.

How do I set a target PSI and start deflating?

Rotate the deflator body until the laser-etched scale aligns with your desired pressure, then tighten the locking ring to secure the selection. Attach the unit to the Schrader valve and let the automatic mechanism do the rest — it will stop when the preset PSI is reached.

• Scale range: 10–30 PSI (0.69–2.07 BAR) in 5 PSI increments
• Locking ring holds the chosen PSI reliably
• Automatic shut-off requires no gauge monitoring
• Works on any standard Schrader valve stem

How accurate and fast are the SAN HIMA deflators?

These deflators use a finely indexed, laser-etched scale and a narrow tolerance to deliver consistent results—accuracy is specified at ±0.1 PSI. Because you can run all four units at once, they significantly reduce the time required to air down a full vehicle compared with single-gauge methods.

• High precision: ±0.1 PSI tolerance for tight control
• Simultaneous four-tire operation speeds the process
• Rapid automatic shut-off prevents over-deflation
• Spring-release design allows quick reattachment or cleaning

What maintenance and cleaning does the kit need?

Keep performance consistent by periodically separating the spring mechanism from the body to remove sand, mud, and grit. The simple construction requires no tools for routine cleaning, and the included pouch protects the deflators when not in use.

• Detach spring from body for cleaning to avoid clogging
• Wipe components and dry thoroughly before storage
• Padded pouch with four pockets prevents damage and loss
• 2-year warranty provides coverage for manufacturing defects

Will these fit my vehicle and valve stems?

Yes — the SAN HIMA deflators are designed to fit standard Schrader valve stems found on most trucks, SUVs, ATVs and many off-road wheels. They are a universal solution for drivers who want an easier, more accurate way to air down for low-traction surfaces.

• Compatible with common Schrader valve stems
• Ideal for trucks, 4x4s, SUVs, ATVs and trailers
• Works for multiple wheel sizes when valves are standard Schrader type
• No special adapters required for most vehicles

Who is this for: The SAN HIMA Automatic Tire Deflator Kit is made for off-road enthusiasts, overlanders, and anyone who needs to lower tire pressure quickly and accurately before sand, snow, mud, or soft terrain driving. It suits DIYers who value a tidy toolkit — the set organizes in a four-pocket pouch, minimizes time at the roadside, and reduces the risk of over- or under-deflation with precise automatic shut-off.