These are smart tire valve stem caps that replace regular valve caps and provide a visual indication of tire pressure without using a gauge or electronic system.
They work at a standard pressure level of 2.4 Bar (36 PSI), making them ideal for most cars, trucks, and everyday vehicles.
⭐ Product Features
🟢 3-Color Visual Alert System
Green: Normal tire pressure
Yellow: Slightly low pressure (~10% low)
Red: Critically low pressure (~25% or more)
🔧 Easy Installation
Screws on like normal valve caps
No tools, no wiring, no batteries required
🚗 Universal Fit
Compatible with most cars, trucks, motorcycles, and bikes (standard Schrader valves)
💪 Durable Materials
Made of corrosion-resistant metal with copper core for long-lasting use
🌧️ Leak-Proof & Dust-Proof
Sealed design protects from dust, water, and air leakage
⚡ No Power Needed
Fully mechanical system — works without electricity or batteries