Spectra Precision LL400 Laser Level User Manual
Sp ec tra p re ci si on l as er ll400 laser level

A New Standard in Rugged
Construction and Precise
Accuracy
Durable, highly accurate laser level
withstands the toughest job site
The fully automatic, self-leveling Spectra Precision
®
Laser LL400 sets a new standard in rugged
reliability, handling a wide variety of general and
concrete construction applications. Even in tough
job site conditions, the LL400 consistently delivers
reliable, accurate performance to increase your
overall productivity and cost-savings.
The LL400 Laser Level features easy, one-button
operation for basic leveling and provides reliable,
highly accurate, long-range measurements, even
for machine control applications.
The LL400 is designed to be durable and reliable,
day in and day out, and features superior drop
and weather protection. The rugged LL400 can
withstand drops of up to 1 meter (three feet) onto
concrete and tripod tip-over up to 1.5 meters
(five feet). This strength, combined with full
weatherproofing and dust-proofing, results in
reduced downtime and lower repair costs.
The LL400’s self-leveling capability and optional
RC601 remote control provide outstanding
accuracy and ease of use. Since the LL400 levels
itself when turned on, setting up is easy with fewer
controls to deal with. The LL400 also features a
single-axis slope mode to allow slopes on grade,
while maintaining accuracy. Grade matching
can also be performed by one person using the
optional RC601 remote control.
Choice of Receiver
You can customize the LL400 to your specific
application needs with a choice of the HL700 or
CR600 receivers.
HL700 Laserometer
The Spectra Precision Laser HL700 Laserometer
uses new technology to measure and display
beam location and is ideal for use with the LL400
transmitter. The HL700 features a digital readout of
elevation that shows exactly how far you are from
on-grade allowing quick elevation checks without
moving the rod clamp. An anti-strobe sensor stops
construction lights from setting off the receiver,
and makes it easier to identify true laser beam
signals. The protective over molded housing
withstands a drop of 3 m (10 ft) onto concrete. The
highly visible LED display and dual sided LCD’s
allow you to work anywhere.
CR600 Receiver
Rugged, accurate and easy to use, the Spectra
Precision Laser CR600 Receiver is ideal for
longer range leveling and basic machine control
applications. In addition to use as a handheld and
rod-mounted unit, the CR600 can be mounted on a
backhoe, small excavator or skid steer for machine
control with 270-degree reception. It provides
highly visible high, low or on-grade information.
LL400 Features & Benefits
• Fast setup, minimal training time and automatic
self-leveling minimize operating costs and boost
productivity
• Highly rugged design and patented lighthouse
seal protects the rotor head and glass and
offers superior drop and weather protection for
reduced downtime
• Single-axis slope mode provides grade matching
with self-leveling cross axis for improved accuracy
• Energy-efficient design offers choice of
rechargeable or alkaline batteries for lower
operating costs
LL400 Applications
•
Excavations
•
Slopes on grade
•
Leveling forms and footers
•
Screeding concrete
•
Driveways and ramps
•
Machine control
Sp
ec
tra
P
re
ci
si
on
L
as
er
LL400 Laser Level