The Tane TV-330 is a portable and convenient TV test monitor. It can test camera video, and controls RS422 and 485 pan tilt and zooms with its 20 built-in protocols. It has a built-in color generator and volt-ohm meter and can test category 5 and 6 cables for pin configuration. It also has a 12V DC output to power up cameras during set up. The easy-to-use on-screen displays identify problems quickly and efficiently. This CCTV TESTER is a dependable tool for ensuring trouble-free installations. Dimensions are 2” depth by 3.5” wide by 6.3” length with a easy-to-see 2.5” screen. Advantages include a shade flap to see outdoors as well as a lanyard built in to keep it from dropping.