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JOHNSON LEVEL

Johnson Level & Tool is a manufacturer of leveling, layout, and measuring instruments for construction, surveying, and industrial applications. The company was founded in 1947 in Milwaukee, Wisconsin, and has since expanded its product line to include manual levels, optical levels, rotary lasers, leveling rods, squares, and rulers. Johnson Level products are used in concrete formwork, steel erection, carpentry, electrical conduit layout, and site grading, among other tasks. The brand's catalog includes torpedo levels with rare earth magnets and V-grooves for pipe and conduit work, rafter squares with octagon and inch graduations, automatic optical levels with 30X or 32X magnification and IP54 ratings, rotary laser kits with green beam technology and electronic self-leveling, and telescoping leveling rods in fiberglass or aluminum with 1 ft and 1 in graduations. These tools are specified by plant engineers, maintenance managers, and procurement specialists who require repeatable measurement accuracy and durable construction for daily field use. 3G Electric supplies the Johnson Level line as part of its industrial equipment distribution portfolio. The company stocks magnetic torpedo levels, rafter squares, optical levels, rotary laser level kits, and leveling rods, and can source additional Johnson Level items through its supplier network. 3G Electric supports technical buyers with product specification data, including accuracy tolerances, working ranges, aperture sizes, and material details, to assist in matching instruments to specific job requirements. For procurement teams, 3G Electric provides logistics coordination and order fulfillment for Johnson Level products, with shipping to industrial and construction sites globally. The distributor's catalog includes both manual and optical instruments, allowing buyers to consolidate leveling and measuring tool purchases from a single source. 3G Electric does not manufacture Johnson Level products; it distributes them as part of a broader range of industrial burners, pumps, gas controls, and related equipment. This brand profile is intended to give maintenance and engineering professionals a factual overview of Johnson Level's product families and how 3G Electric supports the line.

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About JOHNSON LEVEL

Johnson Level & Tool is a manufacturer of leveling, layout, and measuring instruments for construction, surveying, and industrial applications. The company was founded in 1947 in Milwaukee, Wisconsin, and has since expanded its product line to include manual levels, optical levels, rotary lasers, leveling rods, squares, and rulers. Johnson Level products are used in concrete formwork, steel erection, carpentry, electrical conduit layout, and site grading, among other tasks. The brand's catalog includes torpedo levels with rare earth magnets and V-grooves for pipe and conduit work, rafter squares with octagon and inch graduations, automatic optical levels with 30X or 32X magnification and IP54 ratings, rotary laser kits with green beam technology and electronic self-leveling, and telescoping leveling rods in fiberglass or aluminum with 1 ft and 1 in graduations. These tools are specified by plant engineers, maintenance managers, and procurement specialists who require repeatable measurement accuracy and durable construction for daily field use. 3G Electric supplies the Johnson Level line as part of its industrial equipment distribution portfolio. The company stocks magnetic torpedo levels, rafter squares, optical levels, rotary laser level kits, and leveling rods, and can source additional Johnson Level items through its supplier network. 3G Electric supports technical buyers with product specification data, including accuracy tolerances, working ranges, aperture sizes, and material details, to assist in matching instruments to specific job requirements. For procurement teams, 3G Electric provides logistics coordination and order fulfillment for Johnson Level products, with shipping to industrial and construction sites globally. The distributor's catalog includes both manual and optical instruments, allowing buyers to consolidate leveling and measuring tool purchases from a single source. 3G Electric does not manufacture Johnson Level products; it distributes them as part of a broader range of industrial burners, pumps, gas controls, and related equipment. This brand profile is intended to give maintenance and engineering professionals a factual overview of Johnson Level's product families and how 3G Electric supports the line.

Common Applications

  • Concrete formwork and foundation layout — Johnson Level 32X automatic optical level (40-6962) for elevation control and alignment.
  • Steel erection and plumbing — Johnson Level 9-inch magnetic torpedo level (1411-0900) with rare earth magnets and V-grooves for pipe and conduit.
  • Site grading and excavation — Johnson Level 16 ft fiberglass telescoping leveling rod (40-6316) with 1 ft/1 in graduations for grade checking.
  • Carpentry and stair layout — Johnson Level CS5 rafter square with octagon and inch graduations for marking rafters and stairs.
  • Electrical conduit and mechanical installation — Johnson Level magnetic torpedo level for level, plumb, 45°, and 30° measurements.
  • General construction layout — Johnson Level JRT300-GNHV-K rotary laser kit with green beam and 4,000 ft range for horizontal and vertical alignment.

Frequently asked questions

Common questions about JOHNSON LEVEL from 3G Electric.

What is the accuracy specification for Johnson Level magnetic torpedo levels?

Johnson Level magnetic torpedo levels, such as the 9-inch model 1411-0900, are rated to 1 mm/m accuracy. They feature top and side read vials for level, plumb, 45°, and 30° measurements. The acrylic body with aluminum frame and rare earth magnets allows attachment to ferrous surfaces, and V-grooves enable alignment on pipe or conduit. These levels are used in plumbing, electrical, and mechanical installation where both level and angle readings are required from a single tool.

What is the difference between the Johnson Level 30X and 32X automatic optical levels?

The Johnson Level 30X automatic level (model 40-6960) has a 40 mm aperture and a maximum working range of 400 ft, with accuracy of ±1/16 in at 200 ft and a leveling range of 1° 30'. The 32X model (40-6962) also has a 40 mm aperture but extends the maximum working range to 450 ft, with the same accuracy and leveling sensitivity. Both are rated IP54 for protection against dust and water splashes. The higher magnification of the 32X model provides a larger image for sighting at longer distances.

What are the key features of the Johnson Level JRT300-GNHV-K rotary laser kit?

The Johnson Level JRT300-GNHV-K rotary laser kit provides horizontal and vertical beam alignment with electronic self-leveling. It uses a green beam, which is visible over a range of up to 4,000 ft when used with a receiver. Accuracy is ±1/8 in at 100 ft. The kit includes a receiver and is designed for site layout, elevation control, and alignment tasks. The green beam technology aids visibility in indoor and outdoor conditions. This rotary laser is part of Johnson Level's line of automatic self-leveling lasers for construction and surveying.

What graduations are available on Johnson Level telescoping leveling rods?

Johnson Level telescoping leveling rods are graduated in 1 ft and 1 in increments. For example, the 16 ft fiberglass rod (40-6316) has 4 segments and includes a case. The 13 ft aluminum rod (40-6310) and 16 ft aluminum rod (40-6320) also feature 1 ft/1 in graduations on a 1 in wide face. These rods are used with optical levels and laser levels for elevation measurement and grade checking. The telescoping design allows compact storage and transport between job sites.

What materials are used in Johnson Level rafter squares?

Johnson Level rafter squares, such as the CS5 model, are made from stamped aluminum. They feature an octagon shape with inch graduations and 1/10 in markings. These squares are designed for marking and measuring rafters, stairs, and octagon layouts in carpentry and construction. The aluminum construction provides a balance of lightweight handling and resistance to corrosion. The CS5 is a framing square that can be used for repetitive layout tasks where consistent angle and length markings are required.

Does 3G Electric supply JOHNSON LEVEL products?

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