LED HD HDMI MONITOR 21.5″ HDMI/VGA 16:9, Vigilant VISION (PD215ECO), Black,
Vigilant VISION PD215ECO 21.5″ LED HD HDMI/VGA 16:9 MONITOR 1080P RES 5MS. Panel Type 21.5” LED HD HDMI Monitor. VGA Auto Frequency correction Yes. Contrast Ratio 1000 : 1 (Max). Sound Demodulation N/A.