The MDT421S High Definition widescreen LCD monitor brings full HD 1080P to our line in a bright 42" digital display with native 1920x1080 resolution. Use this display monitor to build amazing entertainment and digital signage displays. These monitors are also ideal for message boards, video conferencing, classroom presentations, retail kiosks, or gaming displays, or to enhance your facilities with welcome messages, company promotions, or human resources information. Features Designed for Your Application The MDT421S monitor answers your need for digital signage, message boards, video conferencing, retail kiosks, or broadcast displays to enhance your facilities with everything from advertising to welcome messages to vital, up-to-the-minute news and information. And versatility is engineered into every one: Inputs range from DVI-D, D-Sub 15 and HDMI. The MDT421S features a built-in CAT5 receiver and an accompanying transmitter box can be purchased separately as an optional accessory. The MDT421S LCD display monitor also features both front and rear ambient light sensors for the ultimate in installation flexibility. The monitor automatically adjusts its brightness based on the ambient light ensuring your message is always clear and vibrant.