Line laser detector for the Imex range of laser levels The Imex LDG1 line laser detector detects the laser lines on the Imex range of green beam laser levels. With the LDG1 the working range of the laser can be increased to around 55m. When used with the staff or the cut and fill rod it can be used in similar applications to the rotating lasers. Features: Suits LX22G, LX25PG and the LX3DG Green beam line lasers Max 55m pick-up range. Audible buzzer Includes bracket to suit staffs and cut and fill rod