Security and Privacy: It serves as a fundamental security feature, enabling occupants to identify visitors before granting entry, thus enhancing personal safety and privacy.
Wide-Angle View: Modern door viewers incorporate wide-angle or panoramic lenses, providing a broad field of vision (e.g., 220 degrees) to minimize blind spots and allow viewing from the porch ceiling to the doormat and across the doorway.
Construction: They are made of durable materials high-quality alloy or solid brass, offering resistance to damage and rust for a long service life.
Installation: Door viewers are designed for relatively easy installation, compatible with various door thicknesses due to adjustable screw ranges.
Applications: They are used in homes, offices, hotels, and other public areas to enhance security and monitor external activity