George Risk Industries DS-01T-B Recessed Door Contact Switch

Product Description

The George Risk Industries DS-01T-B is a recessed door contact switch designed for use in access control, security, and alarm system installations. The switch mounts flush within a drilled cavity in a door or door frame, keeping the sensor hidden from view and protected from mechanical damage. The trimmed brass finish provides a clean, professional appearance at the installation point. With a minimum diameter of 3/4 inch, it fits standard recessed contact bores used across residential and light commercial applications. Licensed security installers and low-voltage technicians are the primary trades working with this component.

The DS-01T-B is suited for wood, hollow metal, and composite door assemblies where a concealed magnetic contact is required. It is commonly installed at entry points, utility rooms, server rooms, and other controlled-access locations. The recessed design keeps the switch out of the door swing path, reducing the chance of accidental damage during normal door operation. This switch is sold as a single unit and is appropriate for new installations as well as replacement of existing recessed contacts of the same bore size.

Key Features

• Recessed mounting design conceals the contact within the door or frame cavity
• Trimmed brass construction provides a finished look at the bore opening
• 3/4 inch minimum diameter fits standard recessed contact drill sizes
• Single-unit packaging suitable for individual door installations or stock replacement
• Low-voltage compatible for use with standard alarm and access control panels

Compatibility

Designed as an OEM-style replacement for recessed door contact switches with a 3/4 inch minimum bore diameter in residential and light commercial security and alarm systems.

Installation Notes

Installation is performed by licensed low-voltage or alarm system technicians. Before installation, ensure power to the alarm or access control panel is disconnected. The door and frame must be drilled to the correct bore depth and diameter to seat the contact and magnet properly. Follow local low-voltage wiring codes and the panel manufacturer's wiring guidelines when terminating leads.