GRI A-87-W Recessed Adapter, 7/8" Diameter with 3/8" Hole, White

Designed for fast, dependable mounting of contact magnets and sensors, the George Risk Industries A-87-W recessed adapter delivers a secure, low‑profile solution for security, surveillance and access control installations. This mounting adapter features a self‑locking, snap‑in/snap‑out design that reduces installation time and simplifies field service—ideal for busy integrators and facility maintenance teams. Sized for compatibility, the A-87-W provides a 7/8" diameter with a 3/8" machine hole to accept standard contact magnet hardware, and its surface‑mount/hybrid installation works on a wide range of door and frame materials. Available in white and packaged in convenient bags of 100, these reusable adapters help control inventory and lower per‑unit costs on large deployments. Manufactured in the U.S., the adapter’s unobtrusive profile keeps sensors discrete while maintaining consistent alignment for accurate monitoring and alarm performance. For installers specifying contact magnet accessories for commercial or multi‑site projects, the GRI A-87-W is a practical, reliable choice. Order packs of 100 to streamline your next security or surveillance installation.

• Secure, self‑locking mount reduces sensor movement and false alarms for reliable security monitoring
• Snap‑in/snap‑out design speeds installation and maintenance for technicians
• Compact recessed adapter blends with door/window frames to preserve aesthetics in surveillance installations
• 7/8" diameter with 3/8" machine hole fits common contact magnets and access control hardware
• Bulk packaging (bags of 100) and reusable construction lower project costs for installers and integrators