The Seco 92001 is a professional-grade 8-foot fiberglass leveling rod built for surveyors and construction layout crews who need reliable, decimal-based elevation readings in the field. With feet-tenths graduations, this rod eliminates the conversion math associated with fractional readings, reducing transcription errors and keeping your crew moving efficiently on grade-sensitive work.
Overview & Jobsite Applications
Engineered for both open-site and confined-space work, the Seco 92001 collapses to a compact 52 inches for easy transport in a service truck or equipment van. Its two-section fiberglass construction resists warping from heat and moisture — a critical advantage on jobsites where rods can sit in direct sun or wet conditions for extended periods. The tenths graduation system is the standard choice for civil engineering, site grading, road construction, and utility installation work where decimal-foot elevations feed directly into data collectors and CAD workflows.
Key Specifications
- Total Length: 8 feet (extended)
- Collapsed Length: 52 inches
- Sections: 2
- Graduation System: Feet and tenths (decimal foot)
- Material: Fiberglass construction
- Graduation Style: High-contrast face for easy sighting through optical level or total station
- Intended Use: Differential leveling, construction layout, site grading
Key Features
- Feet-tenths decimal graduation eliminates fractional conversion in the field
- Fiberglass construction is non-conductive and resists warping in heat and moisture
- Two-section telescoping design for compact transport and quick deployment
- High-contrast graduation markings for clear sighting at distance
- Durable finish designed to maintain legibility through heavy field use
- Lightweight enough for solo operation during routine grade checks
Job Applications
Site Grading & Earthwork: The tenths system integrates directly with grading plans expressed in decimal feet, so rod readings go straight into grade calculations without conversion. Ideal for cut/fill operations on commercial pads, road subgrades, and parking lots.
Utility Installation: Use the Seco 92001 to verify pipe invert elevations, manhole rim grades, and trench bottom grades during storm sewer, sanitary sewer, and water main installation — where grade tolerances are strict and documentation matters.
Construction Layout & Floor Elevation Checks: Supports differential leveling loops during building layout, floor slab elevation verification, and ADA compliance elevation checks where hundredths accuracy in decimal feet is required.
Road & Infrastructure Surveying: Works efficiently with automatic levels and digital levels on highway, bridge, and infrastructure projects where project datums and benchmarks are all expressed in decimal feet.
Compatible Accessories
- Seco Rod Level Bubble — Ensures plumb rod positioning for accurate readings
- Seco Fiberglass Rod Carrying Case — Protective transport for single or paired rods
- Seco Rod Target — High-visibility target for long-distance sighting
- Leica NA320 Automatic Level — Pairs seamlessly with this rod for differential leveling
- Seco Rod Foot / Turtle — Provides a stable base point on soft or uneven ground
Related Guides
- How to Run a Differential Leveling Loop — Field Guide
- Feet-Tenths vs. Feet-Inches: Choosing the Right Graduation for Your Project
- Top Leveling Rods for Construction Surveying in 2024
- Setting Up and Calibrating Your Automatic Level
Frequently Asked Questions
- What is the difference between a feet-tenths rod and a feet-inches rod?
- A feet-tenths rod (like the Seco 92001) graduates measurements in decimal feet — for example, 4.6 feet — while a feet-inches rod uses traditional fractional inches. Decimal-foot rods are preferred in civil engineering, surveying, and construction because project elevations and grade sheets are almost always expressed in decimal feet, making rod readings directly usable without conversion.
- Can I use the Seco 92001 with a digital level or total station?
- Yes. The Seco 92001 is compatible with optical automatic levels, digital levels, and total stations used for trigonometric leveling. For digital levels that use bar-code rod face reading, verify compatibility with your specific instrument — some digital levels require a manufacturer-matched bar-code rod face for automatic reading, though the Seco 92001 can always be read manually through the eyepiece.
- What does the rod weigh and how compact is it for transport?
- The Seco 92001 collapses to 52 inches in its two-section configuration, making it manageable in a standard pickup truck bed, van, or equipment trailer. Fiberglass construction keeps the weight low enough for single-person deployment. Exact shipping weight is listed on the product detail page.
- Is fiberglass the right material choice for my work environment?
- Fiberglass is the preferred material for most field conditions. It is non-conductive (an important safety consideration near overhead utilities or electrical work), highly resistant to moisture absorption that can cause wooden rods to warp, and holds up well in direct sun and temperature swings. For crews doing GPS or total station work in areas with power infrastructure, fiberglass is the professional standard choice.
