RS-485 1 RS-485 (half duplex, HIKVISION, Pelco-P, Pelco-D, self-adaptive). Hikvision DS-KAB673-FB Peripheral Bluetooth Fingerprint Recognition Module. L30: Ø26 mm × 50 mm (Ø1.0 × 2.0\")". Efficient H.265+ compression technology to save bandwidth and storage.
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