The Siemens IB958 Passive ISO Proximity Cards are factory-encoded ISO laminated proximity cards. These are intended to be used with the Bewator and Granta access control systems.  Sold in packs of 10 Standard CR80 credit card size (86mm x 54mm) Reading range: approximately 33cm for Cotag Hands-free readers Reading range: varies between 3 and 10 cm for Cotag proximity readers Manufacturer code: IB958