Digital Door Viewer Infrared Night Vision Doorbell Camera for Home for Office Feature: 1. 2.8in LCD Screen: 2.8in high definition LCD screen with 300000 pixel CMOS active digital image sensor, you can see outside the door clearly. 2. Night Vision: 2 infrared LED lights with night vision function, automatic photo or video of suspicious objects outside the door in dark environment. 3. 110° Wide Angle: This digital door viewer with 110° wide angle, provides you with a large field of view to ensure home security. 4. Easy Installation: Easy to install, door hole diameter is approx. 14& 8209;55mm/0.55& 8209;2.17in, door thickness: approx. 35& 8209;110mm/1.38& 8209;4.33in. 5. Wide Application: Suitable for home, office buildings, apartments, hotels and so on, perfect for iron doors, wooden doors, glass doors, etc. Specification: Item Type: Digital Door Viewer Material: ABS Sensor: 300000 pixel CMOS active digital image sensor Resolution: 240x320 Angle: 110° Doorbell: Doorbell function, 4 ringtones to choose from Micro Storage Card: Supports up to 32GB Take Photo Video: Supported Power Supply: 4 x AAA dry battery (not included) Night Vision: 2 infrared LED lights with night vision function, LED automatically turn on under backlight Door Hole Diameter: Approx. 14-55mm/0.55-2.17in Door Thickness: Approx. 35-110mm/1.38-4.33in Size: Approx. 114x102x17mm/4.49x4.02x0.67in Package List: 1 x Camera 1 x Screen 6 x Screw 1 x Mounting Panel 1 x User Manual Note: 1. Do not place the product in an environment with excessive corrosion, humidity and high temperature. 2. Please supply power according to the operating voltage. Using other voltages may cause fire and damage to the product.