Dewalt dw0889kd line laser with detector dewalt dw088kd xj this line laser with detector from dewalt is a 2 way self levelling laser horizontal and vertical used in conjunction with the de0892 detector designed with a built in magnetic pivot bracket which mounts easily on metal surfaces and overmolded housing with thick glass protecting the tool while helping to maintain calibration under jobsite conditions other features include the 2 button operation and low battery indication for ea