The bosch gll 2 15 professional line laser is a compact cross line laser for professionals it is small and lightweight and versatile due to the supplied multifunction mount it has a robust design with a softgrip covering that protects against knocks and the pendulum lock ensures safe transport line mode is freely selectable and it comes with a protective bag multifunctional mount and 3 x 15 v lr6 aabatterieslaser diode 635nm lt 1 mwoperating temperature 10 50degcstorage temper