DS-PSG-WI-868(O-STD) Review
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DS-PSG-WI-868(O-STD) Hikvision DS-PSG-WI-868 Wireless Internal Sounder
Hikvision DS-PSG-WI-868 Wireless Internal Sounder, 868 MHz two-way wireless communication; AES-128 encryption; Adjustable volume: low, medium, and high; Front and rear panel tamper-proof; Protection level: IP54; Indoor installation; Exception detection of connection, tamper-proof, and battery