First Universal TPMS sensor to be registered with NSF International, an independent organization that provides third-party assurance to consumers, shops, and insurance companies that an aftermarket TPMS sensor meets all applicable federal requirements and. Surface-mounted antenna ensures signal integrity and extended battery life. Available in two valve stem configurations, rubber or metal, to match the proper application. Comes fully assembled from the factory, so it's ready to be programmed to your vehicle. Can be OE-relearned or ID-cloned using any major TPMS tool after programming and before installation.