Rsrteng multifunctional CCTV tester is an essential tool for installing and maintaining security cameras. It supports testing of IP cameras up to 8K, 32MP, 12MP, and coaxial HD, CVI, TVI, AHD, SDI, and CVBS cameras up to 4K, 8MP, with report generation. Equipped with a 7-inch HD touch screen monitor with 1280*800 resolution for easy viewing. Includes a built-in multimeter for measuring AC/DC voltage, resistance, diodes, and capacitance, plus continuity checks. The integrated cable tracer helps quickly locate target cables and supports PD power testing. Runs on the latest Android 11.0 and is compatible with 30+ protocols. App updates are supported.