Protect Your Truck
or RV with The

GiraffeG4 Sentinel

“Low Clearance” Collision Avoidance System
For Companies and Individuals.

Prevent This!




The GiraffeG4 System has three United States
Patents and utilizes advanced sound technology.

Patent# 8,212,660. 8,207.836. Pat. Pend.#11,198,390

Measures Low Clearance

Measures the exact height of the “Low Clearance “ obstacle your vehicle is about to pass under and continues to measure the height of the obstacle until your vehicle is safely clear.

Parkway Warnings

The GiraffeG4 Sentinel User App will give you this warning at the entrance to every Parkway in NYC , Boston, Philadelphia, Connecticut, and their environs where trucks and RV’s aren’t allowed.

Displays Important Info

The important information, i.e. height of your vehicle, height of the sensor, is entered into your easy to use phone APP (Android). Trailer height can be changed easily if new trailers are swapped out.



Step 1…GiraffeG4 Sentinel/Tracking App

The GiraffeG4 Sentinel System consists of an exterior waterproof sensor, an electronic module that does the height calculations, and a 12 volt plug in. It communicates through bluetooth to an Android phone Tracking App.

The Tracking App(pat. pend.) is a survey tool that measures the exact height and GPS location of potential “Low Clearance” hazards in the area where your fleets work. Bridges, trestles, trees, parking garages and building awnings.  It can cover an unlimited amount of locations. The height and GPS locations are displayed on the Android phone app. The Operator then saves and downloads the height/GPS information into a database. 

The Sentinel TRACKING APP(pat. pend.) also has a Manual option. If there are tree limbs or wires that are difficult to measure, and your fleet has been hitting them, those hazards can be measured manually and entered in the database.

This database is where all the height and GPS locations are stored , available to be utilized by the User App.  See below for the User App info




If your fleet consists of 50 vehicles, you won’t need 50 GiraffeG4 Sentinel Tracking units.  One GiraffeG4 Sentinel System Tracking App and hardware can cover an unlimited geographic area.  When your drivers are subscribed to the User App they will have daily access to the database where they will enter the height of the vehicle they are driving that day, and be protected from “Low Clearance” hazards with an alarm and a flag before they reach the obstacles. If your fleet has 12′ trucks and 13’6″ trucks, all heights are protected in the database.

If your fleet has bucket trucks that are hitting trees, or ambulances (ambulettes) that are hitting parking garages and building entrances the Sentinel can measure those low heights and protect your equipment. ,

Step 2: User App for Individual Truckers and RV's

GiraffeG4 Sentinel User App

NYC,Boston, Philadelphia, Connecticut

GiraffeG4 Systems has pre-measured a database for individual truckers and RV enthusiasts that provides “Low Clearance” collision prevention measurements for New York City, Philadelphia, Boston, and their environs, plus the State of Connecticut.  

This Northeast corridor User App includes a warning of the entrance to every Parkway in these States where commercial vehicles and RV’S are prohibited.  These Parkways are the scenes of many expensive “Low Clearance” accidents.


How The GiraffeG4 Sentinel System Works

vehicle with the GiraffeG4 Sentinel Tracking App approaches "Low Clearance" bridge.

The Tracking App measures and downloads the exact height and GPS location of the bridge onto a database.

Driver of 13'4" truck gets a USER App warning that the bridge ahead is too low before the truck is at bridge. They'll take a different route.



    The system works good.  Thanks again for the personal service.  I really appreciate GiraffeG4 LLC for the amazing personal service.


      I’m glad somebody finally came up with something that can measure tree branches along the road, I knocked the cover off my AC unit last year on a back road in New Hampshire… I’ve tested the GiraffeG4 a few times and I think it’s going to help…I like it so far…

      John D.


        The Giraffe G4 is the best thing I’ve ever purchased for my RV. It keeps me safe on the roads in Connecticut and protects my wallet, big time! All RV owners should invest in the G4!

        Skip B


          It measures accurately. I would definitely recommend it. Great customer service.



            This is so awesome for our business! We haul equipment and this is great for all the traveling and everywhere we go! Our drivers love it and we do to!

            Victor and Tammy S.

            Spears Equipment Hauling

              I’m originally from Georgia, I haven’t made it to Hawaii cause I can’t get there-the other 49 I’ve pretty much covered all of them. I’ve done everything from dump trucking to semi’s over the road, I’ve done a little bit of all of it, I’m 29 years in. If you’re going to NY, Philly or Chicago the GiraffeG4 is a great tool to have. All the bridges are mismarked. I used to haul prefab houses down in Georgia-18ft high. I wish I had the GiraffeG4 back in those days- I wouldn’t feel safe traveling without it anymore. I would recommend it to any driver, all drivers, they should have it.

              Robbie W.


                Using the GiraffeG4 gives me the extra bit of confidence – along with my high pole to protect the load, if I have contact on the pole and need to back up to remeasure the GiraffeG4 gives me a readout of the height so I can inform the driver of the height. The GiraffeG4 is a great tool for the high pole car operator and for the driver with no pole car. This will give him the measurements as he is slowly going under a bridge that may be mismarked and he will be able to stop and back out and save the load from being damaged. PS: I have fourteen years experience and I think GiraffeG4 will give you the edge to do a great job and to protect the load.

                WD Pilot Car

                Bristol, IN

                  The system works good.  Thanks again for the personal service.  I really appreciate GiraffeG4 LLC for the amazing personal service.


                    We have about 5 of your units installed and in use with our company trucks and absolutely love them!

                    Miles P.

                    Remote Medical International, Seattle WA

                      I like the GiraffeG4. I have a commercial GPS that has put me places that I didn’t intend to go and I trust it to keep out of trouble. I’d give it 5 stars if it came with a longer coax cable…

                      John M.


                        It measures accurately. I would definitely recommend it. Great customer service.



                          was looking at a Land Line magazine and saw your ad. Just like you to know I've had one of your Giraffe units on my last two trucks and I can't tell you how many times it's saved my ass. I've had it so long I see your on gen4 and I'm sure I have the gen1 and it's still working great. If you are in a heavy haul you can't go wrong with this product. Thanks again for a product that works and keeps working.

                          Ron M


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