Performance test & certified accurate to ANSI B40.1 International Accuracy Standards (±2-3%), providing the ability to measure and inflate with precision up to 100 PSI without relying on batteries Fully equipped with an extra long, heavy duty 21" reinforced rubber air hose for easy tire valve access, and features a unique glow-in-the-dark dial display for use in dark shops, garages, and night Durable steel body features built-in air bleeder valve to quickly decrease pressure in overinflated tires and reset readings to zero; gauge dial head is guarded by our rugged rubber protective cover Complete inflation set is air compressor ready - includes our all-new exclusive lock-on air chuck (patented technology), steel 1/4" NPT quick connect male fitting attachment, and a BONUS thread seal tape roll FREE 100% Lifetime Satisfaction Guarantee by JACO Superior Products (for any reason) when you order today, so click "Add to Cart" with confidence and enjoy longer-lasting tires, improved gas mileage, and a smoother driving experience