The Spectra GR153 16-foot metric grade rod is built for contractors and surveyors who need reliable, readable measurements in the field without the bulk of a fixed-length rod. Five anodized aluminum sections extend to full height and collapse to just 44 inches, making transport in crew cabs, vans, and equipment vaults straightforward. Whether you're running grades on a commercial site, checking elevations for utility work, or laying out foundations, the GR153 delivers consistent metric readings with graduations you can trust under jobsite conditions.
Overview and Jobsite Applications
Designed for professional use, the Spectra GR153 pairs with optical levels, laser levels, and digital levels that read metric graduations. The telescoping aluminum body keeps the rod manageable for a single operator working across large sites, while the anodized graduation markings resist fading and abrasion after repeated use and handling. The compact collapsed length means the rod stores alongside other instruments without special rigging or roof rack mounting.
Key Specifications
- Extended Length: 16 feet (approximately 4.9 meters)
- Collapsed Length: 44 inches
- Number of Sections: 5 telescoping segments
- Material: Lightweight anodized aluminum
- Graduation Type: Metric, anodized for durability
- Locking Mechanism: Polycarbonate section locks, tool-free operation
- Compatible With: Optical levels, laser levels, digital levels
Key Features
- Five-section telescoping design extends and collapses in seconds without tools
- Anodized graduation markings resist wear, UV exposure, and field chemicals
- Lightweight aluminum construction reduces fatigue during extended site work
- 44-inch collapsed length fits inside most crew cabs and enclosed work vans
- Metric graduations compatible with international project specifications
- Polycarbonate section locks hold each segment securely at full extension
- Consistent diameter sections for stable plumb rod positioning
Job Applications
Foundation and Grading Layout: Use the GR153 to verify cut-and-fill elevations across grading projects. The 16-foot range covers most earthwork applications from a single instrument setup, reducing the number of backsights needed across a large pad.
Utility and Pipeline Work: Check invert elevations and trench grades during storm drain, sanitary sewer, and waterline installations. Metric graduations align with engineered plan sets that specify metric tolerances.
Commercial Construction Layout: Set floor elevations, slab benchmarks, and column base plates where metric documentation is required. The readable anodized graduations hold up on dusty concrete decks and active framing floors.
Topographic Survey Support: Rod crews working with total stations and optical levels appreciate the lightweight build for long field days covering multiple setups. The collapsed length simplifies transport between setup points across rough terrain.
Compatible Accessories
- Spectra Rod Bubble Level Attachment
- Aluminum Rod Target for Enhanced Visibility
- Grade Rod Carrying Bag
- Spectra HV101 Horizontal / Vertical Laser Level
- Optical Level Tripods — Contractor Series
Related Guides
- How to Choose the Right Grade Rod for Your Survey Instrument
- Metric vs. Imperial Grade Rods: Which Do You Need on Site?
- Telescoping vs. Fiberglass Grade Rods: Pros and Cons for Field Crews
- Setting Up and Reading a Metric Level Rod — Field Guide
Frequently Asked Questions
- Is the Spectra GR153 compatible with laser level detectors?
- The GR153 is a passive metric grade rod and does not have a built-in detector slot. It is designed for visual readings with optical and digital levels that read metric graduations. For use with rotating laser levels, pair it with a compatible laser detector mounted on the rod face.
- What is the minimum and maximum usable height of the GR153?
- The GR153 collapses to 44 inches, which represents its minimum usable height for close-range shots. At full extension, the rod reaches 16 feet. Intermediate heights can be set by extending only some sections, though readings should always be taken with sections fully locked at their intended extension point.
- How durable are the graduation markings on the GR153?
- Graduation markings on the GR153 are anodized directly into the aluminum surface rather than painted or printed on. Anodized markings resist chipping, peeling, UV fading, and exposure to common jobsite chemicals including concrete, solvents, and cutting fluids, providing a longer service life than surface-applied markings.
- Can one person operate the GR153 without a rod person?
- The lightweight aluminum construction and tool-free locking sections make it practical for a single operator to extend, position, and lock the GR153 without assistance. For accurate readings, the rod should be plumbed using a rod bubble level attachment to ensure vertical alignment before the instrument operator takes a shot.
Frequently Asked Questions
Is the Spectra GR153 compatible with laser level detectors?
The GR153 is a passive metric grade rod and does not have a built-in detector slot. It is designed for visual readings with optical and digital levels that read metric graduations. For use with rotating laser levels, pair it with a compatible laser detector mounted on the rod face.
What is the minimum and maximum usable height of the GR153?
The GR153 collapses to 44 inches, which represents its minimum usable height for close-range shots. At full extension, the rod reaches 16 feet. Intermediate heights can be set by extending only some sections, though readings should always be taken with sections fully locked at their intended extension point.
How durable are the graduation markings on the GR153?
Graduation markings on the GR153 are anodized directly into the aluminum surface rather than painted or printed on. Anodized markings resist chipping, peeling, UV fading, and exposure to common jobsite chemicals including concrete, solvents, and cutting fluids, providing a longer service life than surface-applied markings.
Can one person operate the GR153 without a rod person?
The lightweight aluminum construction and tool-free locking sections make it practical for a single operator to extend, position, and lock the GR153 without assistance. For accurate readings, the rod should be plumbed using a rod bubble level attachment to ensure vertical alignment before the instrument operator takes a shot.