The Cotag Siemens IB968 Passive Clamshell Cards are pre-encoded passive proximity cards designed to work with Cotag readers. No batteries, no configuration — just consistent, reliable reads every time. The passive design means there's no theoretical limit on the number of reads, which matters when you're running a busy access control environment where cards are used dozens of times a day.

Each card arrives pre-punched, so attaching it to a lanyard, clip, or reel is straightforward from the moment it arrives. The standard CR80 format (86mm x 54mm) keeps everything compatible with existing card holders and wallets, and the clamshell casing offers a level of physical durability you don't always get with thinner card formats. Reading range extends to up to 30cm — enough flexibility for most reader configurations without requiring a precise tap.

Sold in packs of 10, these are the kind of cards that suit organisations managing staff access across multiple doors or sites — particularly those already running Cotag infrastructure who need a reliable, no-fuss replenishment option.