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Spectra Precision GL720 Dual Grade Laser Package with HL700 Receiver |
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| The GL720 Series gives you the right laser for the right job… this dual steep slope grade laser transmitter with an advanced, long range radio remote control. Further, the GL720 Series offers the most innovative collection of features ever available – Long Range Laser Receiver, PlaneLok, Grade Matching and Automatic Axis Alignment – to let you get to grade faster and with more accuracy. On site, you’ll find that the advanced features quickly translate into productivity and accuracy. The GL720 comes with a laser receiver standard, your choice of power options, and the best service and support in the industry. With Spectra Precisions GL720 Grade Laser you can count on quicker setups and more productivity … for more profitability. |
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| Spectra Precision GL720 Dual Grade Laser Package INCLUDES | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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| Spectra Precision GL720 Laser FEATURES and BENEFITS | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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| Spectra Precision GL720 Laser APPLICATIONS | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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| Included HL700 Receiver Details |
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| Spectra Precision GL72X Series Package Options | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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| Spectra Precision GL72X Series SPECIFICATION COMPARISON | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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| Spectra Precision GL720 - BUILT FOR THE JOBSITE | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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ACTIVE TEMPERATURE COMPENSATION LONG-RANGE WIRELESS LINK PROTECTIVE LENS HOOD MANUAL ALIGNMENT SIGHTS HIGH-POWERED VISIBLE BEAM SELECTABLE ROTATION SPEEDS INTUITIVE, SIMPLE CONTROLS MANUAL VERTICAL CAPABILITY FIELD CALIBRATION LONG BATTERY LIFE FULLY SEALED, RUGGED ALUMINUM HOUSING GRADE BUMP GRADE REVERSE AUTOMATIC SELF-LEVELING SPECTRA PRECISION LASERS AUTOMATIC OFF GRADE SENSOR LARGE ALPHA/NUMERIC DISPLAYS |
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| Spectra GL700 SERIES GRADE LASER COMPARISON CHART |
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| Spectra Precision GL7OO Series Package Options | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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| Spectra Precision GL700 Series SPECIFICATION COMPARISON | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Spectra Precision GL720 — Straight Answers
From Spectra Precision's own documentation for the GL700 series, which we host on this site. If your question is not here, call 1-877-866-5721 and ask a person who sets these up.
What is the grade range on a GL720?
Dual axis: -10 to +10% on the X axis and -0.5 to +25% on the Y axis. That is what lets you set cross-fall and run at the same time instead of chasing one then the other.
What is the GL720 best suited to?
General construction and machine control grade work where you need two axes. Same 900 metre diameter range as the rest of the series.
How far will it reach?
900 metres - 3,000 feet - in diameter, and that is the same across the whole GL700 series. The range belongs to the transmitter, not the receiver, so it does not change with which receiver you pair it with.
What rotation speeds does it run, and which should I use?
300, 600 and 900 rpm, selected from the rotation-control button. For hand-held work on a grade rod any of them is fine. If you are running a machine receiver, use 600 rpm as a minimum and faster if you have it - the faster the head spins, the more times the beam crosses the receiver every minute and the more often the operator's display updates. On a dozer or a skid steer making quick changes in elevation, a slow laser leaves the display chasing the blade.
Which receivers does it work with?
Spectra Precision HL700 and CR600 receivers, and the Trimble LR410 machine receiver. The GL700 series is part of the Trimble Grade Control System family, so it also works alongside GCS300, GCS600 and GCS900 grade control systems for automatic lift and tilt.
Does it self-level?
Yes, automatically, across the whole grade range - which is what makes setup repeatable rather than something you fiddle with. It also carries active temperature compensation, so the beam holds its plane as the day warms up rather than drifting off it.
Is it built for a jobsite?
Fully sealed rugged aluminium housing, weather-resistant control panel, a built-in non-slip carrying handle and a protective lens hood for working in bad weather. The beam is high-powered and visible, which matters in dust.
What is the warranty?
Two years. Worth knowing: calibration is specifically not covered - keeping the laser in calibration is the owner's responsibility. We can check and certify one for you; call 1-877-866-5721.
Does this model have the radio remote?
No. The radio remote, PlaneLok, Grade Match Mode and Automatic Axis Alignment are the GL722 features. This model is the straightforward grade laser - set it up, set your grade, work to it. If you are regularly changing grade on a long pull, or you want to set grade from the cab, the GL722 is the one to look at and we would rather tell you that now than after you have bought.
Who am I buying from?
Contractors-Tools.com, an authorized Spectra Precision dealer. We set these up every week. Tell us the work and the machines and we will spec the laser and the receiver together before you order. Call 1-877-866-5721.
Source: Spectra Precision GL700 series brochure and complete user guide.
