REVO has quickly established itself in the retail market as the upper echelon of video surveillance equipment, With over 30 years of combined experience in video surveillance product manufacturing, management and support, REVO offers the highest quality in video surveillance equipment, 21, 5 LED Wide Screen MonitorREVO 21, 5"" widescreen advanced LED high resolution color flat panel monitor creates ultra-bright images! Comes with an adjustable stand and is VESA mount compatible, Free lifetime technical support, , LCD Panel Monitor:, 21, 5"" viewing area, Viewing Angle: 170/160degrees (H/V), Contrast ratio: 1000:1, Response time: 5 ms, Input signal: VGA(RGB-PC), Max resolution: 1366 x 768 @ 60 Hz, Dimension(L x W x H): 5 x 22, 25 x 16, 4 in SKU: REAM021