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The George Risk Industries N20RS-12-W is a recessed magnetic door and window contact designed for security and access control wiring applications. This unit features a 3/8-inch diameter press-fit lead configuration paired with a 3/4-inch magnet, finished in white to blend with painted door or window frames. It is installed by alarm technicians and low-voltage security installers in both residential and light commercial settings. The press-fit lead design simplifies installation into pre-drilled holes without the need for separate hardware, making it a reliable choice for surface-integrated concealed contact work.
The N20RS-12-W is suited for recessed mounting in wood, hollow-core, or composite door and window frames where a flush, concealed profile is required. Its white finish makes it appropriate for interior residential doors, windows, and frames where aesthetics matter alongside function. Security integrators and low-voltage contractors typically specify this contact type for perimeter zone wiring on alarm panels and access control systems.
Designed as an OEM-style recessed magnetic contact for use in standard residential and light commercial door and window security alarm applications.
Installation is typically performed by licensed low-voltage or alarm system contractors. Power down or disarm the alarm panel before wiring this contact into any zone circuit. A properly sized drill bit is required to bore the recessed hole to accept the press-fit body. Follow all applicable local codes and manufacturer panel wiring guidelines when connecting to alarm or access control systems.
We pulled together the parts most installs need for this unit, plus a few add-ons worth a look. Check what you need — nothing here blocks checkout.
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