This Weldex industrial LCD monitor is built for mobile and fixed security-viewing applications, using active matrix TFT technology for sharp, stable picture quality rather than a consumer-grade panel. It supports NTSC/PAL composite video input for direct connection to analog cameras or DVRs, and includes on-screen-display controls for adjusting color, brightness, contrast, and tint to match the viewing environment. Many models in this family are built for flush-mount, rack-mount, or vehicle/kiosk installation, and some add integrated audio or weatherproof sealing for outdoor and mobile use. Model WDL-1700M specifically ships with 17" size.