This is a set product including a 2TB recorder, a one-cable unit, and a camera. TPV-1 Allows camera wiring with a single coaxial cable. Compatible models: VAC-948, VAD-848, VAD-848C, VAC-648 VAI-330X, VMD-858VX, TBM-1 For one camera. Each channel of the main unit is equipped with a video level adjustment switch. VAD-848A (1) Equipped with a 1/3-inch high-resolution 2-megapixel CMOS sensor module. (2) Video output can be either AHD2.0 (analog HD) mode or CVBS mode. (3) Compatible type that can be connected to either power-over-coax (one-cable) or DC12V. (4) Equipped with a D-WDR function that outputs appropriate images even for subjects with extreme light and dark contrasts through digital processing. (5) Equipped with a day/night function that displays high-quality color images during the day and clear black and white images at night. (6) 2D and 3D digital noise reduction can be set arbitrarily, allowing for images with reduced noise. TMV-4DX (1) Can connect AHD, HD-TVI, and CVBS cameras simultaneously. (2) Supports AHD3.0 and TVI3.0, enabling 4-megapixel recording. (3) 4K support for HDMI output allows for live monitoring with 4-megapixel images (TMV-16DX only). (4) Various network access options are available via client software, web browser, CMS, UMS* mobile. (*Multi-site monitoring software) (5) H.265 compression method is used. (6) 4-channel audio recording is possible. (7) Digital zoom is available for live and playback images. (8) Equipped with USB backup function and scheduled recording function. (9) Equipped with motion detection, anomaly detection, and video loss detection functions. Event information can be sent via email. Built-in HDD: HDD (2TB) x 1 is standard.