BIOKEY is the Biometric reader which uses hand geometry analysis like typical and unambiguous people characteristic in order to operate a check of identity. N°96 hand significant characteristics are acquired from digital camera during registration, processed from microprocessor and pressed. The shape of reference so obtained is filed with a reference code. Recognition operation comes by means of the introduction user code and a new hand reading: elaborated value reading with the same criterion is compared to that filed, with an estimate of difference between two values. If the difference is included among the definite values on bases of desired security level, BIOKEY confirms identity qualifying its service. Reader can work like Stand alone unit (one door to control), or Slave when there is a Master or P.C...