Bosch optical level mounted on tripod with vertical leveling rod; setup used for elevation measurement in construction surveying.
Bosch GOL 32 Professional Optical Level with telescope, circular scale, and adjustment knobs for precision measurements.
Labeled diagram of Bosch GOL 32 optical level showing features like bubble vial, lens, and leveling screws.
Worker using surveying instrument on tripod near excavator at urban construction site; buildings visible in background.
Surveyor operating tripod-mounted instrument at construction site; bridge, excavators, and second worker visible in background.
Construction worker using Bosch optical level on tripod to measure elevation; another worker stands near measuring rod.
Bosch optical level mounted on tripod with vertical leveling rod; setup used for elevation measurement in construction surveying.
Bosch optical level mounted on tripod with vertical leveling rod; setup used for elevation measurement in construction surveying.
Bosch GOL 32 Professional Optical Level with telescope, circular scale, and adjustment knobs for precision measurements.
Labeled diagram of Bosch GOL 32 optical level showing features like bubble vial, lens, and leveling screws.
Worker using surveying instrument on tripod near excavator at urban construction site; buildings visible in background.
Surveyor operating tripod-mounted instrument at construction site; bridge, excavators, and second worker visible in background.
Construction worker using Bosch optical level on tripod to measure elevation; another worker stands near measuring rod.
Bosch optical level mounted on tripod with vertical leveling rod; setup used for elevation measurement in construction surveying.
BOSCH

Bosch Optical Level GOL 32CK 32X Magnification (Self Leveling Compensator Plus Minus 1/16 Inch Accuracy 330 Feet Range Tripod Grade Rod Kit)

In stock
SKU: GOL 32CK
$369.00 USD

Description

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Bosch GOL 32CK 32X Automatic Optical Level Kit

The Bosch GOL 32CK Automatic Optical Level Kit is a high-precision surveying and site layout instrument engineered for land grading, foundation footings, concrete slab pouring, and elevation transfer tasks. Featuring a 32X magnification telescope lens with a large aperture, this optical sight delivers a 330-foot working range with a leveling accuracy rating of ±1/16 in. at 100 ft. Outfitted with a magnetically dampened wire-hung compensator with an automatic transport lock, horizontal fine-drive screws, Stadia lines for distance calculation, and a circular bubble vial with a 90-degree penta prism, this complete kit includes a BT160 aluminum tripod and a GR 8 8-foot grade rod.

Best Used For:

  • Building Foundation & Footing Leveling: Establishing flat concrete form elevations and verifying grade depth prior to foundation pours.
  • Civil Land Grading & Drainage Mapping: Calculating slope angles and elevation differentials across 330-foot site radii using Stadia line reticles.
  • Commercial Structural Framing Alignment: Verifying horizontal sill plate parallelism and column height benchmarks across structural steel bays.

Key Performance & Safety Features

  • High-Resolution 32X Magnification Lens: Large optical objective lens projects sharp reticle crosshairs across long-distance surveying runs.
  • Magnetically Dampened Wire-Hung Compensator: Internal self-leveling system stabilizes the line of sight against jobsite vibrations caused by heavy machinery.
  • Automatic Compensator Transport Lock: Internal mechanical lock secures the delicate pendulum mechanism when the tool is stored to prevent transit damage.
  • 90-Degree Penta Prism Bubble Viewfinder: Reflects the circular bubble vial image to eye level for fast leveling without shifting posture.
  • Top-Mounted Quick Sight Peep Finder: Directs rapid optical alignment toward distant grade rods before fine-tuning focus.
  • Continuous Friction Horizontal Drive Knobs: Fine-pitch lateral drive screws allow precise reticle targeting on the leveling rod.

What's Included

  • (1) Bosch GOL 32 Automatic Optical Level
  • (1) BT160 Aluminum Contractor Tripod
  • (1) GR 8 8-Foot Grade Rod
  • (1) Precision Plumb Bob
  • (1) Adjustment Tool Kit
  • (1) Protective Lens Cover Cap
  • (1) Hard Protective Storage Case

Technical Specifications

Brand / Manufacturer Bosch
Model / Part Number GOL 32CK
Optical Telescope Magnification 32X
Leveling Accuracy Tolerance ±1/16 in. at 100 ft (1.6 mm at 30 m)
Maximum Working Range Distance Up to 330 ft (100 m)
Compensator Mechanism Type Magnetically Dampened Wire-Hung Pendulum
Compensator Leveling Range ±15 Arc Minutes
Tripod Mounting Thread Size 5/8 in. - 11 UNC Thread
Included Grade Rod Length 8 ft (GR 8)
Total Kit Weight 17-9/10 lbs (17.9 lbs)
Overall Package Dimensions 53 in. L x 8-1/2 in. W x 8-1/4 in. H
Pro-Tip: Always check that the circular bubble vial is centered inside the penta prism before taking rod measurements; leveling the base screws first ensures the internal magnetic compensator stays balanced across long distance sighting runs.