SECO 5540-20 12 ft Ultralite Fiberglass Prism Pole with TLV Lock | 3.5lbs

Overview

The SECO 5540-20 12 ft Ultralite Pole with TLV Lock is a lightweight, user-friendly survey pole designed for prism positioning, robotic total station work, construction layout, and other field measurement applications.

Both the inner and outer sections are constructed from lightweight, non-conductive fiberglass. The two-section pole extends to 11.81 ft (3.60 m), providing additional reach while reducing the weight associated with many extended-height poles.

SECO’s TLV locking mechanism combines a twist lock with an integrated vial for secure height adjustment without unnecessary hardware. The pole also includes a removable point, patented Topo Boot, soft-touch locking knob, adjustable 40-minute vial, and a 5/8-11 adjustable tip.

Key Features

• Lightweight Ultralite survey pole
• SECO part number: 5540-20
• Two-section adjustable design
• Maximum length of 11.81 ft
• Maximum metric length of 3.60 m
• Lightweight fiberglass inner section
• Lightweight fiberglass outer section
• Non-conductive fiberglass construction
• SECO TLV twist-lock mechanism
• Integrated adjustable 40-minute vial
• Soft-touch locking knob
• Adjustable tip with 5/8-11 thread
• Dual graduations in 0.01 ft and centimeters
• Includes removable point
• Includes patented SECO Topo Boot
• Designed for extended-height surveying and layout

Lightweight Ultralite Construction

SECO designed the Ultralite Series to provide a lightweight and user-friendly alternative for surveyors who regularly carry and operate an extended pole.

The reduced weight can make the pole easier to transport, extend, and hold throughout the workday, particularly during repeated prism measurements or construction layout.

Non-Conductive Fiberglass Sections

Both the inner and outer pole sections are manufactured from lightweight fiberglass.

The fiberglass construction is non-conductive, making it a practical alternative to aluminum poles for jobsites where non-metallic equipment is preferred. Proper safety procedures must still be followed around overhead lines, buried utilities, and energized electrical equipment.

Two-Section Extended-Reach Design

The SECO 5540-20 uses two adjustable sections and extends to a maximum length of:

• 11.81 ft
• 3.60 m

The extended reach is useful for high prism setups, elevation changes, excavations, and measurements where a standard-height pole may not be sufficient.

SECO TLV Locking Mechanism

The TLV system combines a twist-lock mechanism with an integrated level vial.

This streamlined design reduces unnecessary weight while providing a secure locking function for holding the pole at the selected height.

Soft-Touch Locking Knob

A soft-touch knob provides a comfortable gripping surface when tightening or loosening the TLV lock.

The textured design helps make pole adjustment easier during repeated field use and when the operator is wearing work gloves.

Adjustable 40-Minute Vial

The pole includes an adjustable 40-minute vial for checking vertical alignment.

Keeping the pole plumb helps position the mounted prism or surveying accessory directly over the intended point. The vial can be adjusted as part of routine pole maintenance when necessary.

Dual 0.01 ft and Centimeter Graduations

The SECO 5540-20 includes dual measuring scales:

• Decimal feet graduated to 0.01 ft
• Metric graduations in centimeters

The graduations allow the operator to set and confirm the pole height before entering it into a total station, data collector, or field software.

Adjustable 5/8-11 Tip

The adjustable tip includes a standard 5/8-11 connection for mounting compatible surveying accessories.

The adjustable design allows the overall pole configuration to be fine-tuned for the mounted equipment and measurement procedure. Always verify the completed pole height before collecting survey data.

Removable Point and Topo Boot

The SECO 5540-20 includes a removable pole point and SECO’s patented Topo Boot.

The removable point supports precise placement over survey marks and control points. The Topo Boot provides an alternative contact surface for topographic and soft-ground applications where a conventional sharp point may sink into the surface or provide inconsistent positioning.

Ideal Applications

• Robotic total station surveying
• Conventional total station surveying
• Prism positioning
• Construction layout
• Topographic surveying
• Boundary surveying
• Grade staking
• Utility mapping
• Excavation measurements
• Engineering fieldwork
• Extended-height survey setups

Technical Specifications

What’s Included

• 1 × SECO 12 ft Ultralite Pole with TLV Lock
• SECO p/n: 5540-20
• 1 × Removable pole point
• 1 × SECO patented Topo Boot
• 1 × Adjustable 5/8-11 tip
• 1 × Integrated adjustable 40-minute vial

Prism, prism adapter, bipod, carrying case, and other surveying accessories are sold separately.

Lightweight Extended-Reach Pole for Professional Surveying

The SECO 5540-20 combines an 11.81-foot reach with lightweight, non-conductive fiberglass construction. Its TLV lock, dual graduations, adjustable vial, removable point, and included Topo Boot make it a versatile pole for professional surveying and construction layout.