The Pro Video VM-1201B utilizes a 12-inch black-and-white high-resolution screen to provide you with a 1,000 TVL (TV lines) at-center resolution. This unit operates on the EIA (Electronics Industries Association) TV system, and features flip-open front-panel access to all picture controls, a looping video input/output for when using multiple devices, and a built-in topside carrying handle. This single-camera monitor includes a BNC (Bayonet Neill-Concelman) connection for composite-video (no support for audio), and runs on an voltage ranging from 100 to 240-volts of AC. Housed inside rugged black metal cabinet, the VM-1201B measures 12.25 x 12.25 x 12.5 inches (W x D x H) in dimension, and has an operating temperature of 14 to 122 degrees Fahrenheit.