L-732 Precision Dual Scan® Laser


Designed primarily for lower-accuracy flatness, straightness and squareness measurements, the L-732 Precision Dual Scan® Laser has 2 auto-rotating laser planes, 1 vertical and 1 horizontal. Both laser planes are flat within 2 arc seconds (.00012 in/ft or 0.01 mm/m) in a 360º sweep and 1 arc second in a 90º sweep. The laser planes are perpendicular within 2 arc seconds. It also features 3-arc-second illuminated level vials.

The laser is mounted on an adjustable base with coarse pitch, roll and yaw adjustments, so that each laser plane can project the measurement reference out to 100 feet (30.5 m) in radius in all directions. The laser is completely self-contained and can operate on battery or AC power.


  • For alignments with tolerances of .00012 in/ft. or 0.01 mm/m or greater
  • Measuring and aligning:
    • The flatness and straightness of almost any surface (squares, frames, ways, flanges, circles, etc.)
    • Leveling almost any surface (squares, frames, ways, flanges, circles, etc.)
    • The flatness and straightness of horizontal and vertical surfaces
    • The straightness of horizontally and vertically traversing axes of machine tools
    • The squareness of vertical to horizontal surfaces, up to 100 feet (30.5 m)
    • The parallelism of vertical or horizontal surfaces
    • Checking plumb of a vertical surface up to 100 feet (30.5 m)
    • Checking machine tool guideway twist and parallelism between guideways
    • Measuring surfaces up to 200 feet (61 meters) long with 1 setup
  • Water-jet cutting machines
  • Laser-cutting machines
  • Roll forming machines


  • Two continuously rotating laser planes (1 horizontal and 1 vertical) with operational range of 100 feet (30.5 m) in radius.
  • High accuracy:  laser planes flat to 2 arc seconds (.00012 in/ft. or 0.01 mm/M) in 180º sweep and 1 arc second (.00006 in/ft. or 0.005 mm/m) in 90º sweep
  • Planes are mutually square with an accuracy of up to 2 arc sec (.00012 in/ft. or 0.01 mm/m).
  • Includes Pitch/Roll/Yaw adjustment base with coarse adjustments.
  • Standard illuminated levels accurate to 3 arc second (.00018 in/ft. or 0.015 mm/m).
  • Optional L-740SP high-accuracy, split-prism illuminated levels accurate to 1 arc second (.00006 in/ft. or 0.005 mm/m).  Note:  requires laser base L-730CFU upgrade.
  • Uses A-1519-2.4ZB Single-Axis, Wireless Targets – 1.2 in (33 mm) PSD, .00002 in (0.0005 mm) resolution.
  • Wireless targets provide real-time alignment data updating simultaneously.
  • Align and monitor multiple axes simultaneously using up to 99 targets at the same time.
  • Usually 1-2 setups per machine.
  • Setups typically take 10-20 minutes or less.
  • Short warm-up
  • Optional Windows Win7/8/10 software for quickly recording and analyzing machine geometry data
  • Battery or AC powered
  • Laser and targets fit into portable shipping case
  • L-732WW version has 2 vertical laser plane used for roll alignment and flatness, straightness and squareness measurements of vertical surfaces



Laser: 6.5 lbs (3.0 kg)
Battery Pack: 1 lb (0.45 kg)
L-123 Base: 10 lbs (4.54 kg)


Laser: Aluminum and Stainless Steel
L-123 Base: Aluminum

Laser Type:

Visible diode, 670 nM wavelength Class II (Class I in scanning mode) .160 in (4.06mm) beam diameter

Laser Power:


Beam Stability:

Translation: .0001 in/hr/ºF (.005mm/hr/ºC)
Angular: 0.2 arc sec/hr/ºF (0.36 arcsec/hr/ºC)

Beam Straightness:

.000015 in/ft. (0.001 mm/m) +/- .0001 in per 10 feet (3 m) air noise

Laser Plane Flatness:

2 arc secs:  .00012 in/ft. (0.01 mm/m), +/- .0003 in (0.0075 mm) in 360º sweep

1 arc sec:    .00006 in/ft. (0.005 mm/m) +/- .00015 in (0.0038 mm) in 90º sweep.

Laser Plane Squareness:

Top-to-side laser plane squareness: within 2 arc seconds (.00012 in/ft or 0.01 mm/m)

Operating Modes:

1 or 2 planes, switched individually. 

1 vertical and 1 horizontal laser plane.

Operating Range:

Each laser plane has a 100-foot (30.5 meters) operating range in radius

Power Supply:

9V DC external battery pack (2 cells) or 115/220V AC adapter

L-123 Base Adj. Range:

+/- 1.5º

L-123 Base Adj. Resolution:

1.7 arcsec (0.01 in. in 100 ft or 0.25 mm in 30.5 m)

Level Vials:

Illuminated and accurate to 2 arc seconds or 0.00018 in/ft. (0.015 mm/m)

Optional Hi-Accuracy Level Vials:

L-740 Split-Prism Upgrade:  accurate to 1 arc second (.00006 in/ft. or 0.005 mm/m).  Requires L-730CFU Coarse-Fine Adjustment Base Upgrade.