Spectra GL1425C

The Spectra GL1425C is a rugged dual grade laser designed for accurate horizontal, vertical, and grade levelling. Featuring built-in Bluetooth for smartphone control, an 800m range, and Grade Match capability with the HL760 receiver, it delivers reliable performance for demanding construction and civil engineering projects.

Integrated Bluetooth: Control all laser and grade functions via the Spectra Laser Remote App on your smartphone.
Automatic Grade Match: Wirelessly connects to the HL760 receiver to automatically calculate and display unknown grades.
Dual-Axis Capability: Delivers precise horizontal, vertical, and dual-grade levelling with a +/- 15% grade range.
Ruggedized Performance: IP66-rated housing that survives 1m drops onto concrete and 1.5m tripod tip-overs.
800m Working Range: High-speed rotation up to 900 RPM provides a massive 2,600 ft diameter coverage area.

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Full Description

The Spectra Precision GL1425C is an automatic self-levelling dual grade laser engineered to handle horizontal, vertical, and steep slope alignment tasks across challenging jobsites. Capable of driving dual axis grades up to ±15% (with pre-tilt), the GL1425C delivers high-precision accuracy of ±1.5mm at 30m. Its versatile design makes it ideal for sports fields, driveways, ramps, drainage pipelines, and general concrete formwork layout. Equipped with integrated Bluetooth technology, the GL1425C pairs with the Spectra Precision Laser Remote App on your smartphone, enabling full wireless control over laser functions without requiring a separate physical remote. When paired with the HL760 digital readout receiver, the laser offers advanced functionality such as Grade Match (to measure unknown slopes) and PlaneLok (to lock onto fixed elevations and eliminate beam drift). Built for extreme durability, the IP66 rated housing survives drops up to 1m onto concrete and tripod tip-overs up to 1.5m, drastically reducing downtime and maintenance costs.

FAQs

What is “Fingerprinting” and why is it useful with the HL760 receiver?

Fingerprinting technology allows the receiver to only “talk” to the specific laser it is paired with. This is crucial on busy sites with multiple lasers, as it prevents your receiver from picking up stray signals from other teams’ equipment.

Where can I get my Spectra GL1425C serviced or recalibrated?

We recommend annual servicing at a PQS Survey Ltd depot to maintain high accuracy for dual-grade work. Our manufacturer-trained technicians test internal motors and Bluetooth systems, providing a fresh calibration certificate for your site records.

Is the GL1425C available for hire on a project-by-project basis?

Yes, the GL1425C is a premium staple of our hire fleet. Hiring is a cost-effective way to access high-end dual-grade technology for specific tasks like sub-base levelling or drainage, with every unit arriving site-ready and fully calibrated.

How long is the battery life for a standard working week?

The GL1425C offers up to 45 hours of continuous use with its NiMH battery pack, generally covering a full week on one charge. The unit can also be used while charging or swapped to standard alkaline batteries to keep the job moving.

What is the “PlaneLok” feature and how does it prevent errors?

PlaneLok “locks” the laser beam onto a fixed point on the receiver. If the beam drifts due to wind, temperature, or tripod settlement, the laser automatically adjusts back to the original position, providing “set-and-forget” security for high-accuracy grading.

What makes the Spectra GL1425C a “smart” choice for modern site engineers?

The GL1425C features integrated Bluetooth for control via the Spectra Laser Remote App. You can manage grade entry and rotation speed directly from a smartphone, reducing time spent walking to the tripod and allowing adjustments from a machine cab.

In which scenarios should I choose the GL1425C over a standard horizontal laser?

The GL1425C is engineered for precision grading with a range of -10% to +15% across both axes. This makes it essential for complex drainage runs, car park falls, and sports field construction where dual-slope accuracy is non-negotiable.

How does the “Grade Match” feature assist with existing site slopes?

Grade Match allows the laser to automatically search for the receiver and calculate the existing grade between two points. It is perfect for matching new work to existing road surfaces or driveways without manual calculations.

Can the GL1425C be used for vertical alignment and building layout?

Yes, the GL1425C features vertical self-levelling and dual 5/8-11 threads. It can be used for vertical plumb transfers, string-line alignment, and squaring off foundations, offering a single-instrument solution for groundworks and structural phases.

How rugged is the GL1425C for typical UK site environments?

The GL1425C can survive a 1-metre drop onto concrete or a 1.5-metre tripod tip-over. Its IP66 rating ensures it is dust-tight and protected against heavy rain, which is vital for maintaining productivity during UK winter months.