Topcon's GEMINI will increase your productivity on all horizontal, vertical or plumb applications, both exterior and interior. Accurate and durable, choose the high-visibility green beam or the red beam model. Use its beam scanning feature and multi-code operation for all interior alignment and elevation tasks. Outdoors, the laser receiver and slope-matching feature makes it ideal for grade checking and excavating. Change beam rotation from across the room with the included remote control. Features also include self-leveling, rechargeable battery pack, selectable rotation speed, HI "laser disturbed" alert and 90 degree plum beam. Its perfect for leveling, alignment, transferring heights and so much more.