... security life Whatever child or older person ,easy to viewer outside Easy to operte ,just press one button ,see the video ... .Press monitor button to turn on the display to see outside anytime .The display will turn on 8seconds ,then become back ... 11cm wirePeephole BarrelInstallation:Step 1. Insert Peephole lens in the outside of the doorStep2. Insert Peephole barrel through base Flange and ...