Ademco 7939WG-WH Surface Mount Magnetic Contact Intrusion Detector

The Intrusion/Ademco 7939WG-WH is a surface mount magnetic contact designed for intrusion detection applications. As a genuine Intrusion/Ademco component, it is engineered for professional life-safety and security installations where reliable door and window monitoring is essential. Surface mount contacts of this type are fundamental building blocks of commercial and residential security systems, providing a discreet and dependable means of detecting the opening or closing of protected entry points. The white finish allows for clean integration into standard interior environments.

Key features & benefits

• Surface Mount Design — Engineered for straightforward installation on door and window frames without requiring recessing, making it suitable for retrofit and new construction projects alike.
• Magnetic Contact Technology — Operates on proven magnetic reed switch principles to detect separation between the magnet and contact body, providing reliable open/close status reporting to a connected control panel.
• Genuine Intrusion/Ademco Component — Manufactured to Intrusion/Ademco quality standards, ensuring compatibility and performance expectations consistent with professional-grade security infrastructure.
• White Finish — The WH designation indicates a white housing that blends unobtrusively with standard interior trim, door frames, and window casings in commercial and residential environments.