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. 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.

2 Ye a r s

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
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, manufacturers certificate, PR 20 operating instructions, PRA 20 operating instructions, BCA gel, packed complete in a Hilti toolbox.
LASER RADIATION - DO NOT STARE INTO BEAM

Accessories

620-690nm/0.95mW max. CLASS II LASER PRODUCT
PRA 20 laser receiver 282836/6 For easy, accurate detection of the rotating beam within an area 400 m (1300 ft) in diameter. 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 11.65 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 0.782.88 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 1.255 m (4" to 16"). Measuring scales on the front and rear. PRA 52 slope calculator Pocket-size aid for easy setting out of slopes. PUA 80 battery charger For use with the PRA 801 battery pack. PRA 801 battery pack For use with the PR 20 rotating laser. PRA 76 slope table For use with the PR 20 rotating laser. 282838/2

000000/0

282834/1

Technical data

Class 2/II, visible 650 nm, < 1 mW (IEC 825-1/EN 60825; FDA 21 CFR 1040) Range (diameter of area covered): 2400 m (6 to 1300 ft) with laser receiver PRA 20 Accuracy (at 24C / +75F): 0.5 mm/10 m (1/16" / 60 ft) Self-leveling range: 5 Battery life (at 24C / +75F): Alkaline 80 hours / NiMH 60 hours Temperature ranges: Operating temperature: 20 to +50C (4F to +122F) Storage temperature: 30 to +60C (22F to +140F) IP protection class (dust and water):IP 56 (in accordance with IEC 529) Dimensions (LWH): PR 20: 186186213 mm (7.3"7.3"8.4") PRA 20: 1656726 mm (6.5"2.6"0.9") Weight: PR 20: 2.4 kg (5.3 lbs) PRA 20: 0.2 kg (0.4 lbs) Laser class:
Hilti Corporation FL-9494 Schaan Principality of Liechtenstein www.hilti.com
Hilti = registered trademark of Hilti Corp., Schaan W 6-en 1 Printed in Liechtenstein 2003 Right of technical and programme changes reserved S. E. & O.