Calculated Industries 8120 Plug Mark Drywall Outlet Locator – Twice Accurate, No Measuring

Overview

Now find and mark hidden electrical outlets twice as easily—without measuring—using the Calculated Industries 8120 Plug Mark Drywall Electrical Box Locator. This compact kit harnesses powerful rare-earth magnets to pinpoint the exact location of existing wired sockets behind drywall, paneling, and other materials, enabling clean, precise cutouts for rehabilitation and replacement work. The result is a clearer plan of action for your project, with marks that guide your drill or saw to the correct opening without guesswork.

Designed for both first-time DIYers and seasoned handypersons, Plug Mark reduces the guesswork that can lead to mis-sized openings or patchwork. The magnetic targets attach to the outlet and stay in place as you work, so you can install the drywall, find the targets, and cut with confidence. This approach aligns with the age-old goal of doing it once, right, and with less fatigue or frustration on every sheet you handle.

Why this helps your project

• Twice as accurate openings: cut precise outlines without traditional measuring errors.
• No measuring required: rely on magnets to locate the socket perimeter and mark the cut area.
• Three simple steps: snap targets into the socket, install drywall, then locate and cut the opening.
• Reduced effort and fatigue: lift the sheet once, finish faster, and minimize wear on fragile drywall.
• Versatile across materials: works with drywall, plywood, laminate, cement board, tile backsplashes, and more.

What you get and how it fits

• Two included targets that plug into existing wired sockets
• One Blind Mark locator for quick setup
• A complete, ready-to-use kit for rehabilitation and replacement projects

Real-world use scenarios

Whether you’re rehabilitating an old space or replacing worn outlets, Plug Mark helps you plan the opening with a clear perimeter before you cut. The combination of magnets and targeted markers provides a practical workflow: position, mark, cut, and install—minimizing guesswork and the need for patching later on. While results can vary with substrate and outlet configuration, users often notice more predictable cuts and smoother rework when using this tool as part of a broader drywall and electrical retrofit process.

Key features at a glance

• Magnetic tool locates existing electrical outlet hole cutouts in rehabilitation and drywall replacement installations
• Perfect sheetrock cutouts in half the time with no measuring using powerful rare-earth magnets
• Get professional results you can be proud of your first and every time with this foolproof patented technology
• Pays for itself by avoiding costly and embarrassing measuring errors
• Two included targets fit most normally-oriented, non-GFI/GFCI outlets, powerful locator finds targets, shows perimeter of box to be cut