Keep it simple with the KS 100HV horizontal and vertical electronic self-leveling rotary laser for precise leveling applications, Ideal for indoor and outdoor use: leveling, checking elevations, concrete forms, footings, foundations; estimating cut and fill; manual slope; installation of decks, pools, partitions and walls; drop ceilings, floors; excavating, digging footings, septic systems. Simple button operation, easy to use. Enclosed Rotor Housing keeps laser safe from tough jobsite conditions.