Feature:1. Characteristic: 4.3 inch LCD screen, 2 million pixels, high definition photo quality, giving you clear image, and with metal outdoor camera, anti theft design.2. Motion Detection: Intelligent motion detection and recognition, automatically detect body movement within a few seconds, automatically recording, reliable to use.3. Night Function: Support night view, with 160° high definition wide view angle, allows you to see visitors clearly at night, ensuring family .4. Loop Recording: Maximum support 32G card (not included), intelligent recognition, automatically cover the oldest photos and videos in chronological order.5. Visitor Recording: Automatic storage technology, when door viewer records the visitor's portrait, it will be automatically stored, and it supports the visitor's video message.How to Use:After installation, turn it on, the screen will display, click the desired function menu, support to review the stored photos and videosSpecification:Item Type: Digital Door ViewerMaterial: ABSScope of Application: Office, Home, VillaDoor Hole Range: Approx. 16-40mm/0.63-1.57inDoor Thickness Range: Approx. 35-105mm/1.38-4.13inLCD Screen Size: 4.3inCamera Pixel: 200WLithium Battery: 2500mAh 3.7V lithium battery (built in)Storage: Maximum 32G (not include) Package List:1 x Host1 x Digital Door Viewer1 x USB Connection Line1 x Fixed Plate1 x Manual6 x Screw