R11 Allarme di sicurezza domestica/Campanello intelligente di benvenuto, campanello digitale da 2,4 pollici con visione notturna a infrarossi e telecamera spioncino elettronica per porta

R11 Digital Peephole Viewer Door Eye 2.4 inch Screen IR Night Vision Electronic Door Eye Camera Door Bell Specification: Screen size: 2.4 inches Night vision: infrared Camera: 0.3MP  Battery: 3 1.5V/AAA alkaline batteries (not included) Language: Multi-country Supported door thickness: 35-110mm/1.38-4.33" Supported door hole diameter: 14-30mm/0.55-1.18" Note: There may be slight size deviations due to manual measurement, different measuring methods and tools. The picture may not reflect the actual color of the item because of different photographing light, angle and display monitor.