- HIKVISION door expansion module
- Supports control of 2 doors
- For 4 RS485 readers (OSDP) or 2 Wiegand readers
- 4 alarm inputs / 2 alarm outputs
- Installed with guide rail
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HIK-721DS-K2M002X(O-STD)2 door expansion module
2 door expansion module
HIK-721
DS-K2M002X(O-STD)
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