Hilti PR20 rotating laser

The strongest link in the chain
Hilti PR 20 rotating laser
The top-performing rotating
laser that takes the harsh
conditions of outdoor construction
work in its stride.

Horizontal or inclined – always spot-on!
Robust
■ Robustly built to withstand harsh
jobsite conditions
■ Dust and waterproof (water jet)
■ Largely unaffected by vibration
Efficient
■ Single-person operation and
straightforward control panel
■ Quick, automatic self-leveling
system
■ Practical laser detector and useful
accessories
Reliable
■ Alignment in the horizontal or
inclined planes at the touch of a
button
■ Accurate results within an area up
to 400 m in diameter
■ Shock warning system in the event
of strong vibration
Featuring an extra-long detection window,
the PRA 20 laser receiver locates at distances
of up to 200 m from the rotating
laser.
The pocket-sized PRA 20 laser receiver is a
reliable and easy-to-use leveling aid.
The straightforward control panel makes
precise leveling or alignment in inclined
planes easier than ever before.
Hilti Calibration
Service
In order to ensure
reliability in accordance with standards
and statutory requirements, Hilti recommends
that laser measuring and detection
tools are checked regularly. The Hilti
Calibration Service provides confirmation
that the tool is in conformance, on the
day it is tested, with the specifications
given in its operating instructions.
Hilti full service
No worries, no costs.
Free of charge for
up to 2 years
from date of purchase.
Repair or
replacement of all
defective parts
incl. labour time.
Transport to and from the repair centre
incl. packaging. Servicing of tools
equipped with a service indicator.
Functional check, adjustment or calibration
and safety test after repair.
2 Years
Every bit as robust as it
looks: The PR 20 shrugs
off dust and water and
provides reliable results
at almost any
temperature, even
when subjected to
vibration.

With the PRA 20 laser receiver, a
single person can quickly determine
the depth of the excavation,
with spot-on accuracy, at any
desired point within 400 m in
diameter.
Pouring and compacting a
concrete deck: The exact height
can be quickly and reliably
determined by a single person.
Saves time and labor: Aligning
and readjusting the formwork for
a concrete deck is a one-man job
with the PR 20.
The slope of a ramp can be set
out or checked more quickly and
more accurately than ever before.
Pipes can be laid quickly on
the correct incline without any
difficulty.
Simply quicker
Hilti PR 20 : precise + efficient
Optical level: timeconsuming + inconvenient

Hilti PR 20 rotating laser
Ordering designation
Item no.
Hilti PR 20 000000/0
PR 20 rotating laser, 3 batteries (type D, alkaline), PRA 20 laser receiver, 2 batteries
(type AA, alkaline), PRA 52 slope calculator, PRA 75 laser receiver holder, manufacturer’s
certificate, PR 20 operating instructions, PRA 20 operating instructions, BCA gel,
packed complete in a Hilti toolbox.
Accessories
Ordering designation
Item no.
PRA 20 laser receiver 282836/6
For easy, accurate detection of the rotating beam within an area 400 m (1300 ft) in
diameter.
LASER RADIATION - DO NOT
STARE INTO BEAM
620-690nm/0.95mW max.
CLASS II LASER PRODUCT
PRA 75 laser receiver holder 282837/4
For attaching the PRA 20 receiver to the PA 951 measuring staff or other staffs, poles,
etc.
PA 910 tripod 310980/8
Tripod with 5 /8" thread, adjustable in height from 1–1.65 m ( 3 /3" to 5 /4"); metal tripod
head.
PA 931 crank tripod 315995/5
Crank tripod with 5 /8" thread, adjustable in height from 0.78–2.88 m ( 2 /6" to 9 /45");
telescopic column with measuring scale.
PA 951 measuring staff 338129/0
Made from glass-fiber reinforced plastic. Extends telescopically from 1.25–5 m
(4" to 16"). Measuring scales on the front and rear.
PRA 52 slope calculator 282838/2
Pocket-size aid for easy setting out of slopes.
PUA 80 battery charger 000000/0
For use with the PRA 801 battery pack.
PRA 801 battery pack 282834/1
For use with the PR 20 rotating laser.
PRA 76 slope table 000000/0
For use with the PR 20 rotating laser.
Technical data
Laser class:
Class 2/II, visible 650 nm, < 1 mW
(IEC 825-1/EN 60825; FDA 21 CFR 1040)
Range (diameter of area covered): 2–400 m (6 to 1300 ft) with laser receiver PRA 20
Accuracy (at 24°C / +75°F): ± 0.5 mm/10 m ( 1 /16" / 60 ft)
Self-leveling range: ± 5°
Battery life (at 24°C / +75°F):
Temperature ranges:
Alkaline 80 hours / NiMH 60 hours
Operating temperature: –20° to +50°C (–4°F to +122°F)
Storage temperature: –30° to +60°C (–22°F to +140°F)
IP protection class (dust and water):IP 56 (in accordance with IEC 529)
Dimensions (L×W×H): PR 20: 186×186×213 mm (7.3"×7.3"×8.4")
PRA 20: 165×67×26 mm (6.5"×2.6"×0.9")
Weight:
PR 20: 2.4 kg (5.3 lbs)
PRA 20: 0.2 kg (0.4 lbs)
Hilti Corporation
FL-9494 Schaan
Principality of Liechtenstein
www.hilti.com
Hilti = registered trademark of Hilti Corp., Schaan W 2896 1203 6-en 1 Printed in Liechtenstein © 2003
Right of technical and programme changes reserved S. E. & O.