Keri’s BioSyncTM Readers provide reliable ­ fingerprint reading in attractive and unobtrusive packages. Readers are available in ­ fingerprint -only, ­ fingerprint + card, and ­ fingerprint + keypad versions. Typically used in higher security applications, they can be used either for primary user identification (­ fingerprint -only) or for secondary veri­fication based on initial use of a card or PIN.