2 cameras, air quality with 2 megapixels, with recording device and 1 terabyte hard disk

A set consisting of 2 surveillance cameras (indoor or outdoor according to the customer's preference, they can specify their request in the note when ordering). Specifications: - Two indoor or outdoor surveillance cameras from Dahua model (HAC-T1A51) with 2-megapixel resolution and night vision up to 20 meters. - Outdoor surveillance cameras resistant to weather conditions according to IP67 standard. - Ability to connect and view via smartphone. - Ability to view on multiple phones at the same time. - Ability to set recording only when motion is detected or continuous recording. - Dahua surveillance camera recorder model (XVR5104HS-I3). - Supports audio and video transmission technology via four channels. - Supports operation of 4 channels with a resolution up to 2 megapixels. - Supports two-way audio transmission via RCA port.