4KB fob for initial use with all Salto iButton Contact RW Locksets, E-cylinders and Wall readers. Use before readers have been programmed to test installation and allow contractor access. Extremely resistant & suitable for most kinds of environments. Stainless Steel iButton in Green plastic holder for keyring attachment. Part No: Salto IBRWGC.

Please check carefully - these are for Salto 2000 series READ/WRITE readers.