S.C. Code Ann. § 56-5-3870: Motor vehicle speed detection jamming devices.

(A) It is unlawful for a motor vehicle to be equipped with or for an operator of a motor vehicle to employ any device that is designed for jamming, scrambling, neutralizing, disabling, or interfering with radar, laser, or any other electronic device used by a law enforcement agency to measure the speed of a motor vehicle.

(B) A person who violates a provision contained in this section is guilty of a misdemeanor and, upon conviction, must be fined not more than one thousand dollars.