The LaserMark is the brand name of a series of rotary laser levels produced by CST/Berger. The devices are designed for use by professionals in need of fast and accurate horizontal and vertical self-leveling. Optimum results can be assisted by making some quick and simple checks and adjustments.
Remove the batteries to determine if they have been properly installed in the unit.
Install fully charged or new batteries to ensure that the unit is ready for operation. The batteries can be checked with a voltmeter or battery tester to make sure they have a maximum charge.
Reset the unit's internal processor by turning off the unit and turning it on again. Also, the battery unit can be removed for five to 10 seconds to allow the capacitor to discharge.
Select the "Auto Level Mode" to make sure the unit is operating properly and will provide a proper self-level measurement.
Use a clean, dry cloth to make sure the laser emitter is clear of all dust and debris. This will ensure that a proper level is achieved.