Milestone ESSL Identix K30 PRO+ID Biometric Fingerprint Scanner (Black) Technical Specification Storage Capacity Fingerprint Templates 1000 Card Storage1000 Transaction Storage1,00,000 Card ReaderYes Keypad4 x 4 Keypad LED IndicatorGreen/Red Schedule Bell/SpeakerMini Speaker CommunicationCommunicationTCP/IP, USB-host Push dataYes Standard featuresSchedule Bell,Self Service Query,SSR Recorder,Automatic Status Switch,DST,T9 Inupt Power & EnvironmentPower Supply12V DC, 1.5 Amps Operating Temperature0oC to 45oC Operating Humidity20% -80% Dimension185 x 140 x 30 mm