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▶The product and its ancillary equipment may present hazards when used incorrectly by untrained
personnel or when used not as directed.
▶To avoid the risk of injury, use only genuine Hilti accessories and additional equipment.
▶Observe the information printed in the operating instructions concerning operation, care and maintenance.
▶Never use the product without having received the appropriate instruction on its use or without having
read this documentation.
▶Due to the principle employed, the results of measurements may be negatively affected by the surrounding
conditions. This includes, e.g. close proximity to equipment that generates powerful magnetic or
electromagnetic fields, taking measurements from unsuitable surfaces and use of unsuitable reflectors.
▶Measurements to plastic foam surfaces, e.g. polystyrene foam, to snow or to highly reflective surfaces,
etc. may result in incorrect readings.
2.2 Proper preparation of the working area
▶Avoid unfavorable body positions when working from ladders. Make sure you have a safe stance and
that you stay in balance at all times.
▶Secure the site at which you are taking measurements and take care to avoid directing the laser beam
toward other persons or toward yourself.
▶Use the product only within its specified limits. Do not direct the laser beam toward mirrors, stainless
steel, polished stone or similar surfaces.
▶Keep the laser exit window clean in order to avoid measurement errors.
▶Observe the accident prevention regulations applicable in your country.
2.3 Electromagnetic compatibility
Although the laser range meter complies with the strict requirements of the applicable directives, Hilti cannot
entirely rule out the possibility of interference to the laser range meter caused by powerful electromagnetic
radiation, possibly leading to incorrect operation. Accuracy must be checked by taking measurements by
other means when working under such conditions or if you are unsure. Likewise, Hilti cannot rule out the
possibility of interference with other devices (e.g. aircraft navigation equipment). The laser range meter
complies with the requirements of class A: The possibility of interference occurring in a domestic environment
cannot be excluded.
2.4 Working safely with laser tools
▶Laser Class 2 tools may be operated only by appropriately trained persons.
▶Laser beams should not be projected at eye height.
▶Precautions must be taken to ensure that the laser beam does not unintentionally strike highly reflective
surfaces.
▶Precautions must be taken to ensure that persons do not stare directly into the beam.
▶The laser beam must not be allowed to project beyond the controlled area.
▶Switch the laser tool off when it is not in use.
▶Activate the locking function in the tool settings in order to prevent unauthorized persons, especially
children, from activating the laser beam.
▶Store laser tools, when not in use, in places to which unauthorized persons have no access.
2.5 General safety rules
▶Check the product for damage before use. Have the damage repaired by Hilti Service.
▶Before using the product, just to be sure, check the product’s preset settings and any settings you have
made yourself.
▶Do not use the product while you are driving a vehicle or operating a machine.
▶Check the accuracy of the product after it has been dropped or subjected to other mechanical stresses.
▶Although the product is designed for the tough conditions of jobsite use, as with other measuring
instruments it should be treated with care.
▶Although the product is protected against the entry of moisture, it should be wiped dry before being put
away in its transport container.
▶Store tools and appliances out of reach of children when not in use. Do not allow persons who are
unfamiliar with the product, or with these instructions, to operate the product. Tools or appliances are
dangerous in the hands of untrained, inexperienced persons.
