Offering pure flat color tube 21 inches (51cm) cctv surveillance monitor model rowa rw21p - video input bnc*2, s-video (y/c)*1 - audio input bnc*2 vga input vga*1, support xvga (1024*768/60hz), svga (800*600/60hz), vga(640*480/60hz) - high definition input ypbpr*1, support 1080p / 1080i / 720p / 625p /525p - picture mode 16:9 / 4:3 (progressive scan status) - video output bnc*2 for dvr or other equipments - audio output bnc*2 - audio system 2*16Ω/2w speakers - system control mode multi-language (chinese/english), contrast, luminance, sharpness, saturation, hue, source browse, - picture mode bus control i2c - scan mode 60hz / 75hz progressive scan, 75hz / 100hz - interlaced scan scan line 1000 tvl - wide voltage design 160 - 250v ac - power consumption: 130w - dimensions 504mm x 420mm x 512mm (w*h*d) - display area size: 415mm x 315mm (w*h) - weight (gross) about 32kg - package dimension 659mm x 657mm x 533mm (l*w*h) - video system pal, ntsc3.85, ntsc4.43 - horizontal scanning frequency 33.75khz - vertical scanning frequency 60hz / 75hz / 100hz / strong radiating system - radiation protection circuit and strong fan - working temperature -10 - 60, - working humidity 30 - 90% - metal shell good emc/emi performance - quality standard iso 9001, china compulsory certification (3c) environmental standard all components and package materials conforming to international environmental protection standard - remote/cables controller - easy-to-use menu with gui.