Giraff G4 height sensor

How to mount a CB antenna (Even if you do not have a CB)

Measure the height of your RV
Now mount the antenna so it is 1" higher than the top of your RV (or 2 if you like)

Mount the antenna forward (on my class A it is on the A pillar)
now you can creep up and if the antenna makes contact I have like six feet before the air conditioner is damaged

Better way.. When approaching a low bridge.. STICK IT (I can do that too,, Multiple sticks)

Funny thing on this, yesterday I get an add on my email fro, CW that has this featured.

IIRC Trailer Life did a review of this item a while back. They who love virtually anything that pays them advertising, found fault with it that you had to drive very slow if you were going to stop in time.

momentum rv wrote:
According to the web site it is just straight up and it does provide audio alert if height is less than programed height. It looks kinda cool but it is something you have to creep up to, not driving speed.

From Camping World Web site:

Protect Your RV with GiraffeG4!

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.

This description would lead me to believe that a whip antenna mounted on the truck at trailer height would serve the same purpose.

I'd be interested to know how purchasers have used them and to what success. If it goes straight up, I would think other than at a very slow speed it would alert too late. On a recent trip to Colorado I us d the Mountain Directory for warnings on the roads we were towing on, thanks to this forum I knew about I25 in Denver and watched the signs and big rigs in areas not posted.

If a 18 wheelers can fit through, you can drive under it while sleeping.

Seems like overkill... Why not just measure the actual height and pay attention to the clearance signs? Granted not all clearance signs are perfect but they're mostly conservative anyway.

According to the web site it is just straight up and it does provide audio alert if height is less than programed height. It looks kinda cool but it is something you have to creep up to, not driving speed.

From Camping World Web site:

Protect Your RV with GiraffeG4!

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.