Innovative Li-Ion concept for long operating time and extra-bright laser lines Li-Ion battery can be replaced with Alkaline batteries or a direct power supply so that the laser is always ready for use With the practical magnetic adapter, the laser can be quickly set up and aligned The warning function prevents serious errors by flashing the laser lines if the laser is not aligned anymore The robust, dust and splash water protected (IP54) housing protects the laser during the rough day-to-day work on construction sites