The Guardall W73820 Proximity Fobs are the designated replacement for Guardall Cards W73837 — a direct, like-for-like swap that keeps your existing access control system running without any reconfiguration. If your site uses the W73837 cards and you're looking for a fob-format alternative, these are the correct choice.

Operating on 125kHz proximity technology, these fobs are compact at 4 x 25mm — practical for keyring carry and suited to environments where a full card format isn't ideal. Sold in packs of two, they work for straightforward replacements or issuing a spare to a keyholder.

Compatibility matters with proximity credentials, and these are built specifically to slot into Guardall systems without guesswork. The kind of consumable purchase that should be simple — and with the W73820, it is.