Florida and Pennsylvania are both members of the Drivers License Compact so Florida's court will inform PennDOT of the citation you received while visiting the Sunshine State of FL once you plead guilty and pay the fine. In Florida it appears this offense would be worth 3 points.

Fortunately for licensed drivers of PA, Pennsylvania has decided not to assign points or place out of state moving violations they consider to be minor on a PA motorist's driving record. So you will not receive on your Pennsylvania driver's license or history the 3 points that you would have if you had been ticketed for violation of a traffic control device within the state of PA.

Without the Florida violation being placed on your PA license or driving record it is doubtful, but not impossible, that your insurance company will see this violation and thus affect your rates. If your insurance company did do an extensive search though they may find it and depending upon your insurance provider's rating system it could affect your premiums.