Honeywell Home 7939-2WH Surface Mount Contact, 1" Gap, SPDT, White

Keep every entry point monitored reliably with the Honeywell Home 7939-2WH surface-mount magnetic contact. Built for commercial and residential security applications, this compact white sensor delivers dependable door/window detection with a standard 1" gap and a Form C (SPDT) reed switch for versatile wired integration. Installers benefit from included cover, screws and spacers for fast surface or optional flush mounting, while the concealed end-of-line (EOL) resistor keeps wiring neat and compliant with common alarm panels. Rated to operate down to -40°F and supporting a 100 mA contact rating at 28 VDC, the 7939-2WH performs in demanding environments and integrates seamlessly into surveillance, monitoring and access control systems. Its low-profile design minimizes visual impact on door and window frames, helping maintain aesthetics without compromising perimeter protection. Ideal for retrofit projects, multi-site rollouts, and new builds that require dependable wired sensors. Order the Honeywell Home 7939-2WH to streamline installations and strengthen your security monitoring—perfect for alarm contractors and facility managers looking for proven reliability.

• Reliable perimeter protection: surface-mount contact provides consistent door and window monitoring to reduce false alarms and improve site security.
• Ready-to-install hardware: includes cover, screws and spacers for quick surface or optional flush mounting—minimizes labor on retrofits and new installs.
• Clean, professional wiring: concealed end-of-line (EOL) resistor cover simplifies circuit termination for wired alarm panels.
• Durable in harsh conditions: rated to operate down to -40°F and backed by a 2-year limited warranty for long-term reliability.
• Wide compatibility: Form C (SPDT) reed switch and 1" standard gap work with most wired security, access control and monitoring systems.