Here you can download a data sheet about the proximity credentials available from Keri Systems: https://keri-kb.com/#Credential_Types/Add-OnCredentialsDataSheet.pdf
An NXT reader can read read HID® Prox Card II and equivalent credentials (including, but not limited to ProxCard II®, ISOProx® II, and ProxKey® II), when using NXT and NXT-MSC controllers. However, there are some important details to be aware of when ...
1.0 Introduction This document can be used to determine the types of proximity cards and key tags that can be used with Keri Systems readers. Note: When using standard NXT or NXT-MSC controllers, the MS Series readers require an NXT-RM3 module and ...