... capacityBeep alarm when records is full, voice prompt with all operationsLINUX Embedded operation system, 24 hours continuous ... IP, USB pen drive Verification mode1: N, 1:1Response time≤1 secondResolution500DPIPowerDC12V, 1AEnvironment-10 -45 °C temperature and ... star-hotel, bank, government, factory, store USB Rfid biometric long range passive rfid reader keypad relay fingerprint access control system