- Compatible with door thicknesses between 60 mm and 90 mm, this product is designed for use with wooden, fiberglass, or metal doors. - Replace your existing door viewer in just 5 minutes without the need for tools, making installation quick and hassle-free. - The high-quality lens provides enhanced security for your home, helping to deter break-ins and unauthorized access. - A wide 220-degree field of view allows you to easily identify visitors while your door remains securely closed. Applications: - Ideal for residential entryways, ensuring peace of mind whether you are at home or away. - Perfect for rental properties, giving landlords and tenants an easy way to monitor who is at the door. - Suitable for commercial settings to enhance security and control access while maintaining a welcoming entrance. This door viewer not only improves safety but also offers convenience and ease of use, making it an essential addition to any home or business.