The SitePRO 25-SK24X Automatic Level is a field-ready optical instrument built for contractors, survey crews, and civil construction teams who need dependable grade readings across the full range of jobsite conditions. Powered by a 24X magnification telescope and a pendulum-based automatic compensator, the 25-SK24X keeps your line of sight locked in once you rough-level the instrument — no manual reticle adjustments needed between shots. Whether you're running elevation on a foundation pour, checking drainage fall on a utility trench, or transferring benchmark elevations across a large site, this level delivers the optical clarity and mechanical reliability professional crews require.
Overview & Jobsite Applications
The SitePRO 25-SK24X is engineered for the repetitive, high-volume leveling work that defines everyday contractor field operations. Its compact, durable housing stands up to the dust, vibration, and rough handling of active construction sites, while the precision-ground optics produce bright, high-contrast images that make rod readings fast and unambiguous even at extended sight distances. Setup is straightforward: mount the instrument on a tripod, center the circular vial, and the compensator takes over — keeping your horizontal plane stable against minor tripod settlement and ground vibration.
Key Specifications
- Magnification: 24X
- Objective Lens Diameter: 36 mm
- Field of View: 1°30' (approx. 2.6 m at 100 m)
- Minimum Focus Distance: approximately 0.5 m
- Compensator Type: Pendulum (magnetic damping)
- Compensator Range: ±15'
- Setting Accuracy: ±1.5 mm/km (double-run)
- Horizontal Circle: 360° graduated circle
- Leveling: Circular vial, 8'/2 mm sensitivity
- Tripod Mount: 5/8" x 11 thread (standard)
Key Features
- 24X coated optics for sharp, high-contrast rod readings at typical site distances
- Pendulum compensator with magnetic damping for fast, stable line-of-sight recovery
- Wide compensator range (±15') accommodates minor tripod settlement mid-session
- 360° horizontal circle for rough angle layout and reference bearing
- Sunshade included to maintain image clarity in direct sunlight
- Rugged housing resists dust and moisture intrusion common on active sites
- Standard 5/8" x 11 tripod thread — fits virtually any contractor tripod
- Includes carrying case, lens cloth, and operator's manual
Job Applications
Foundation & Footing Layout: Shoot consistent elevation benchmarks around footing forms to keep concrete pours level and within spec, reducing rework and material waste.
Earthwork & Grading: Run cut-and-fill grade control across site prep and rough grading operations, verifying blade elevations quickly with a grade rod and rod level.
Utility & Drainage Installation: Confirm pipe invert elevations and verify positive drainage slope on storm, sewer, and site drainage systems before backfill.
Floor & Slab Elevation Checks: Verify slab flatness and finished floor elevations on commercial and residential concrete work to meet tolerance requirements before finishing crews move in.
Compatible Accessories
- Aluminum Tripod — Heavy-Duty Contractor Grade
- Fiberglass Grade Rod — 13 ft Telescoping
- Rod Level / Rod Bubble
- Optical Level Carrying Case — Replacement
- Plumb Bob & Line Kit
Related Guides
- How to Set Up and Use an Automatic Level on the Jobsite
- Optical Level vs. Laser Level: Choosing the Right Tool for Your Project
- How to Run Grade with a Level and Rod
- Caring for Your Optical Level: Maintenance & Storage Tips
Frequently Asked Questions
- What is the difference between an automatic level and a builder's level?
- An automatic level uses an internal compensator — typically a pendulum mechanism — to automatically maintain a true horizontal line of sight once you've roughly leveled the instrument. A traditional builder's level requires manual adjustment of the telescope. Automatic levels are faster to set up and less prone to operator error on busy jobsites.
- What tripod does the SitePRO 25-SK24X require?
- The 25-SK24X uses a standard 5/8" x 11 threaded mount, which is compatible with the vast majority of contractor-grade aluminum and fiberglass tripods. If you don't already own a tripod, Express Tools carries several options matched to this instrument.
- How far can I accurately read a grade rod with the 25-SK24X?
- At 24X magnification and with a 36 mm objective lens, most experienced users can clearly resolve 1/8" rod graduations at distances of 200 feet or more under good lighting conditions. For production grading, typical effective working distances of 100–250 feet are common.
- Does the SitePRO 25-SK24X come with a warranty?
- Yes. SitePRO instruments are backed by a manufacturer's warranty covering defects in materials and workmanship. As an authorized SitePRO dealer, Express Tools supports warranty claims and can assist with service coordination. Contact our team for current warranty terms specific to this model.
Frequently Asked Questions
What is the difference between an automatic level and a builder's level?
An automatic level uses an internal compensator — typically a pendulum mechanism — to automatically maintain a true horizontal line of sight once you've roughly leveled the instrument. A traditional builder's level requires manual adjustment of the telescope. Automatic levels are faster to set up and less prone to operator error on busy jobsites.
What tripod does the SitePRO 25-SK24X require?
The 25-SK24X uses a standard 5/8" x 11 threaded mount, which is compatible with the vast majority of contractor-grade aluminum and fiberglass tripods. If you don't already own a tripod, Express Tools carries several options matched to this instrument.
How far can I accurately read a grade rod with the 25-SK24X?
At 24X magnification and with a 36 mm objective lens, most experienced users can clearly resolve 1/8" rod graduations at distances of 200 feet or more under good lighting conditions. For production grading, typical effective working distances of 100–250 feet are common.
Does the SitePRO 25-SK24X come with a warranty?
Yes. SitePRO instruments are backed by a manufacturer's warranty covering defects in materials and workmanship. As an authorized SitePRO dealer, Express Tools supports warranty claims and can assist with service coordination. Contact our team for current warranty terms specific to this model.
