JOHNSON LEVEL HD

The magnetic box levels (SKUs 61LN12, 61LN15, 61LN13) incorporate rare-earth magnets in the base, allowing the level to attach to steel surfaces such as beams, pipes, or machinery frames. This feature enables hands-free operation during alignment tasks. The standard box levels (SKUs 61LN17, 61LN11, 61LN16) do not have magnets and are intended for general-purpose leveling on non-ferrous surfaces or where magnetic attachment is not required. Both types share the same aluminum frame, acrylic vials, removable end caps, and top/side read capabilities.

Johnson Level HD box levels are available in multiple lengths to suit different applications. Based on the SKUs carried by 3G Electric, standard lengths include 24 inches (SKU 61LN16), 48 inches (SKU 61LN17), and 96 inches (SKU 61LN11) for standard models. Magnetic models are offered in lengths such as 24 inches (SKU 61LN13), 48 inches (SKU 61LN12), and 78 inches (SKU 61LN15). These lengths cover common requirements for framing, equipment alignment, and long-span leveling tasks.

Yes, the Johnson Level HD box levels feature removable end caps that allow access to the vials for replacement or maintenance. The vials are acrylic, which provides impact resistance and clear readability. This design extends the service life of the level, as damaged vials can be swapped out without replacing the entire tool. Replacement vials are available through the manufacturer or authorized distributors.

Johnson Level HD box levels are manufactured to meet industry standards for precision leveling tools. While specific accuracy tolerances are not listed in the product data provided, Johnson Level & Tool typically rates its professional-grade levels to an accuracy of 0.0005 inches per inch (or 0.5 mm/m) for standard models. Users should verify the exact specification for the HD series by consulting the manufacturer's documentation or contacting 3G Electric for details.

The magnetic base on Johnson Level HD magnetic box levels is flat, designed for attachment to flat ferrous surfaces. For curved surfaces such as pipes, the level may not provide full contact, which could affect accuracy. However, the rare-earth magnets are strong enough to hold the level in place on larger-diameter pipes if the level is positioned along the length of the pipe. For precise pipe leveling, a specialized pipe level or a magnetic level with a V-groove base may be more suitable.

Yes — 3G Electric (S) Pte. Ltd. supplies JOHNSON LEVEL HD products. We stock the JOHNSON LEVEL HD catalog and supply genuine factory-original products with full manufacturer warranty and technical support.