Topcon RL-H5A

The Topcon RL-H5A is a reliable self-levelling rotating laser built for accurate height control on construction and groundworks sites. With long-range capability, straightforward setup and a durable site-ready design, it supports consistent levelling and grading work across demanding projects.

800m Long-Range: Massive 2,600 ft diameter coverage for large-scale site grading.
Superior Accuracy: Electronic self-levelling within ±1.5mm at 30m for critical benchmarks.
Manual Slope Mode: Fast, intuitive single-axis gradient settings for drainage and ramps.
All-Weather Tough: IP66 rating resists dust and torrential rain in harsh environments.
5-Year Warranty: Industry-leading factory guarantee with up to 100 hours of battery life.

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5m 5 Section Aluminium Levelling Staff

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Topcon LS-100D

Full Description

The Topcon RL-H5A Rotating Laser Level is designed for professionals who need dependable levelling performance without unnecessary complexity. Widely used across construction, civil engineering and groundworks projects, it delivers a stable horizontal reference for efficient height control over large working areas. The RL-H5A features an automatic self-levelling system that quickly establishes a level plane, helping reduce setup time and minimise user error. When paired with a compatible laser receiver such as the LS100D, it provides extended operating range, making it suitable for open sites, long runs and applications where optical levels would be slower to deploy. Built for real-world site conditions, the instrument is housed in a robust, weather-resistant casing designed to withstand dust, moisture and everyday handling. Its dependable build quality supports year-round outdoor use, even on busy or exposed sites. Simple controls and clear indicators make the RL-H5A easy to use for both experienced surveyors and site operatives, helping maintain productivity throughout the working day. Supplied in a protective carry case, it is well suited to groundworks, concrete levelling, excavation control, formwork, and general construction layout tasks where consistent accuracy is essential.

FAQs

What is the “Safety Lock” or High Alert feature on the RL-H5A?

If the laser is disturbed, bumped, or if the tripod settles, the RL-H5A automatically stops rotating and alerts the operator via the receiver. This prevents incorrect readings after a disturbance, saving you from expensive remedial work caused by height errors.

How long will the RL-H5A run on a single charge during a busy week?

The laser offers up to 60 hours of continuous use with the rechargeable Ni-MH battery pack, or up to 100 hours using standard D-cell alkaline batteries. This dual-power flexibility ensures your site stays productive even if you forget to charge the unit.

What is the benefit of the LS-100D Digital Receiver when used with the RL-H5A?

Pairing with the LS-100D digital receiver provides a millimetre readout, showing exactly how many millimetres you are above or below target grade. This detail is a massive advantage for precision concrete finishing and sub-base levelling, allowing for faster height transfers.

How does the Topcon RL-H5A handle site vibrations from heavy plant?

The RL-H5A uses high-speed electronic self-levelling motors designed to stay locked on level even in high-vibration environments. This makes it more stable than older pendulum-based lasers, making it the preferred choice for engineers working on active road projects.

What should be included in a professional Topcon RL-H5A laser kit?

A standard setup includes the RL-H5A transmitter, a digital or long-range receiver, a rechargeable battery kit, and a rugged carry case. We also recommend a heavy-duty tripod and a 5-metre telescopic staff to ensure a complete, ready-to-work solution.

What makes the Topcon RL-H5A a leading choice for large-scale UK construction projects?

With an 800-metre working diameter and accuracy of ±1.5mm at 30m, it is ideal for large-scale site grading and foundation work. Its electronic self-levelling system ensures that even on the largest footprints, your levels remain pinpoint accurate.

How does the RL-H5A simplify the process of setting slopes and gradients?

The RL-H5A features an intuitive manual single-slope capability, allowing operatives to easily set a grade for driveways or drainage by tilting the laser plane. The self-levelling motors then monitor the axis to ensure the slope remains consistent.

Can I hire the Topcon RL-H5A for specific project phases?

Yes, the RL-H5A is available in our hire fleet. Hiring allows your team to use the latest Topcon technology without capital expenditure. Every kit is dispatched fully checked and calibrated, complete with a receiver and tripod for immediate use.