Indicates that the single lens is 4MP, so the dual-lens is 4MP+4MP=8MP. 4MP VS 8MP High Resolution. Indicates that the single lens is 2MP, so the dual-lens is 2MP+2MP=4MP;. ● Smart Ai Humanoid detection: mixing line, area, two-way flow detection, for the human form, the item triggers no alarm ;.
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