I will kick this review off by saying that this is the most quality built rotating laser I have ever reviewed. Considering how delicate the components are inside, Hilti have protected this unit to the best of their ability. The drop-resistant housing of the Hilti PR 300-HV2S Dual Grade rotating laser has four shock absorbing handles allowing it to survive drops from up to 1.5 metres, which after much deliberating, I did test and glad to say the device is still in one piece. For this review I used it with the Hilti PRA 90 Tripod which worked hand-in-hand with the device offering a stable platform and reliable height transfers.

The PR 300-HV2S Dual Grade rotating laser comes with an auto-alignment feature allowing the laser to align with the receiver and instantaneously display the slope results on the screen.  You can use the laser for levelling (transferring heights, pouring concrete, excavation), grading (foundations, ramps, trenching), aligning (transferring building lines, aligning columns) and squaring. The accuracy is phenomenal with ±0.5 mm at 10 m with a rotation speed of 600 RPM and with an operating distance of 600 m diameter. 

The interface is simple to use and after familiarising yourself with the manual you will be a master in no time. Impressive still is that with the remote and receiver being integrated into one device it can be operated by one person.  After a full charge you can get just over 24 hours use with Li-ion battery and as standard with Hilti, the laser is covered by the Hilti Lifetime Service offering no repair costs whatsoever for up to 2 years from date of purchase. After this, Hilti sets a repair cost limit for the entire life of the tool and has a lifetime warranty in which Hilti will repair or replace, free of charge over the entire life of the tool, all tools that suffer defects as a result of faulty materials or manufacturing faults.

With the durability, strength and accuracy of the device all protected by the Hilti Lifetime Service, this is a sound investment. RRP £1,999 + VAT

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