The driver pulls the GiraffeG4 exterior sensor under the hazard. For 5th wheel units, the magnet mounted sensor will be on the roof or hood of the tow vehicle. For Class "A" coaches, the Ram mounted sensor will be on the windshield or side view mirror. The GiraffeG4 sends a signal at the speed of sound. The pre-programmed read out in the cab will tell the driver the exact height of the bridge, tree limb, or gas station canopy the RV is about to pass under. And most importantly, if there is enough height clearance for the RV to pass under the hazard without damaging the AC unit or TV antenna. The GiraffeG4 will continue to measure the hazard until the RV is clear of it.

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