The OPW Petro Vend 100 proximity reader for cards and key fobs is designed to offer users a convenient fueling experience while facilitating a secure fueling authorization. They can simply hold the card or key fob close to the reader – which identifies the user and checks whether or not to grant access to fueling, without the need to insert a card into a reader device. The proximity card/key fob reader is meant to improve reliability, enhance security and be easy to install. Proximity cards support OPW K800 Fuel Control System formatting.