General description This Smart Door Viewer features a 120-degree viewing angle and a sturdy aluminum front panel, designed to enhance home security by allowing you to see and communicate with visitors at your doorstep. Its water-resistant design ensures clear infrared images day or night, regardless of weather conditions. Technical specifications Viewing Angle: 120° Material: ABS and Zinc Alloy Image Sensor: 300K Pixels CMOS Active Digital Image Sensor Infrared Function: 850nm, clear vision up to 5m Memory Card Slot: Supports up to 32GB (card not included) Power Supply: 4 x 3A Dry Batteries (batteries not included) Accommodates Door Holes: 14‑35mm / 0.6-1.4in Door Thickness: 35‑100mm / 1.4-3.9in Display Size: Approx. 7.5x10cm / 3.0x3.9in Peephole Viewer Diameter: Approx. 6.5cm / 2.6in Gross Weight: 342g / 12.1oz Installation Includes: 1 x Display, 1 x Peephole Viewer, 1 x Chassis, 6 x Screws, 1 x Instruction Manual Usage Press the call button on the outdoor unit to see and talk to