Our proximity key fobs, the TDSi 4262-0246, are ideal for access control solutions. These fobs come with a sturdy plastic housing that makes them perfect for everyday use. They can be easily attached to key rings for added convenience, and each fob features a unique number for easy identification. Unlike other key fobs, the TDSi 4262-0246 requires no battery, which means it can be used an unlimited number of times.Product Highlights:Sold in packs of 100Durable and long lastingNo battery required for an unlimited number of reads