Features " The first box laser on the market to integrate a power tool battery increasing the versatility and usage in conjunction with other tools in the range " Increased accuracy over manual methods with levels of 0.2 mm per meter " Automatic levelling to ± 0.2 mm per meter increases speed and accuracy " High strength magnets located on the rear of the unit for use with metal stud work and tracking " Out of level indicator: laser dot will blink to demonstrate that it is out of level by ± 4 degrees " Easy use one button operation " Flexible battery system: works with all Milwaukee® M12™ batteries " Supplied with a carrying pouch