GiraffeG4 Sentinel User App

1. Pay for the Sentinel User App on our website: www.giraffeg4.com 2. Download from App Store 3. Use your payment email and password to log into the App. GiraffeG4 Sentinel User App will warn the operator of a truck or RV with an audible warning and map, 100 yards before they reach the bridge, trestle, or tunnel their vehicle will hit. Simple to use, just enter the height of your vehicle . You will have "low clearance" collision prevention wherever you're route takes you. he Sentinel User App also provides warnings before the entrances to the Parkways in New York, New Jersey, Connecticut, and Massachusetts where trucks and RV's are prohibited, and the overpasses are very low. Over 12,000 "low clearance" locations across the USA, Canada and the UK.