LR50 for Excavating
and Grading
Features built-in
blade tilt and excavator
boom plumb indicator
Built-in blade tilt
indicator helps
the operator
keep the blade
level for increased
accuracy and
productivity
Center On-grade
provides an equal
amount of grade information above and
below on-grade. Use on dozers, graders,
scrapers and box blades
Built-in plumb indicator for fast, accurate
grade checking in excavation applications
Offset on-grade gives you more range
above grade using the entire receiver for
more productive excavation
LR50W links wirelessly to the RD20
in-cab display
MM-1 Magnetic Mount
The MM-1 quickly attaches to the dipper
arms of excavators or backhoes. Strong
dual magnet packs will not slip on the
machine and are adjustable for quick
installation and set-up.
DM-20 Dozer Mast
The DM-20 is an easy-to-install rigid
mast for grading machines. No welding
is required and no drilling/tapping is
required for Trimble Ready
™
machines.
LR60 for High Speed Excavating
Features Angle Compensation for
Excavating (ACE) for accurate elevation
readings without being plumb
Patented Angle Compensation for
Excavators automatically calculates
and corrects the grade display for
the angle of the dipper arm
Check grade with the dipper
arm extended or retracted up
to 30 degrees
Built-in plumb indicator for fast,
accurate grade checking
Large vertical reception height for
use with bigger excavators
Center On-grade provides an equal
amount of grade information above
and below on-grade. Use on dozers,
graders, scrapers and box blades
LR60W links wirelessly to RD20
in-cab display
Tough, Affordable Spectra Precision Laser Machine Display Receivers
Specifications LR50 / LR50W LR60 / LR60W
Number of Display Channels
5-Channel Display
6-Channel Display in
excavating mode
9-Channel Display
Accuracy: Center on grade mode
(grading)
Fine: 5 mm (0.20 in)
Standard: 10 mm (0.40 in)
Wide: 20 mm (0.80 in)
Setup: 5 mm (0.20 in)
Fine: 10 mm (0.40 in)
Standard: 20 mm (0.80 in)
Wide: 40 mm (1.6 in)
Accuracy: offset on grade mode
(excavating)
Fine: 12 mm (0.50 in)
Standard: 25 mm (1.0 in)
Wide: 50 mm (2.0 in)
Setup: 6 mm (0.25 in)
Fine: 12 mm (0.50 in)
Standard: 25 mm (1.0 in)
Wide: 50 mm (2.0 in)
ACE—Angle Compensation Mode
NA
Fine: 12 mm (0.50 in)
Standard: 25 mm (1.0 in)
Blade-Tilt Accuracy
± 0.5°, ± 1.5°, ± 2.5° N/A
Plumb-Swing Accuracy
± 0.5°, ± 1.5°, ± 2.5°
Standard: (12 mm 0.5 in)
ACE Mode: 25 mm (1.0 in)
Vertical Reception
171 mm (6.75 in) 222 mm (8.75 in)
LED Battery Life
Alkaline Bright/Dim
Wireless with remote on
Ni-MH Bright/Dim
Wireless with remote on
45 / 60 hrs
20 / 30 hrs
30 / 45 hrs
15 / 20 hrs
45 / 75 hrs
35 / 25 hrs
40 / 50 hrs
25 / 20 hrs
Receiver Warranty
2 Years 2 Years
Specifications LR20 LR30 / LR30W
Number of Display Channels
5-Channel Display 5-Channel Display
Accuracy: Center on grade mode
(grading)
Fine: 5 mm (0.20 in)
Standard: 10 mm (0.40 in)
Wide: 20 mm (0.80 in)
Fine: 5 mm (0.20 in)
Standard: 12 mm (0.45 in)
Wide: 32 mm (1.25 in)
Accuracy: offset on grade mode
(excavating)
Fine: 12 mm (0.50 in)
Standard: 25 mm (1.0 in)
Wide: 50 mm (2.0 in)
NA
ACE—Angle Compensation Mode
NA NA
Blade-Tilt Accuracy
NA NA
Plumb-Swing Accuracy
± 0.5°, ± 1.5°, ± 2.5° NA
Vertical Reception
203 mm (8 in) 171 mm (6.75 in)
LED Battery Life
Alkaline Bright/Dim
Wireless with remote on
Ni-MH Bright/Dim
Wireless with remote on
35hrs
50 / 75 hrs
30 / 40 hrs
40 / 50 hrs
20 / 30 hrs
Receiver Warranty
2 Years 2 Years
Accessories
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