Armor All/STP AC120AY01D-1CAN A/C Pro® R-1234yf Smartcharge Gauge and Hose

A/C Pro® Smartcharge Gauge and Hose for R-1234yf vehicles features a reusable trigger-style dispenser that wirelessly connects to your smartphone using Bluetooth® technology through the A/C Pro® app (available on the Apple App Store and Google Play) to provide you with guided, adaptive vehicle-specific instructions to help eliminate guesswork during the recharge process. An integrated troubleshooting guide helps users get back on track should the need arise. This item is best paired with an A/C Pro® refill (AC100RY10X-1CAN).