The DeWalt DCE089D1G-QW is a good choice If you want a 360-degree line laser with a highly visible laser, as it uses 3 green laser lines that are visible up to 30 meters away. There's a measurement deviation of 0.3 millimeters per meter, and the laser is self-leveling up to ±4 degrees. The base is pivotable and magnetic, with a wall mount included as well to secure the laser wherever you want. Another big advantage is the operation on a 10.8-volt 2.0Ah Li-Ion battery. You can work for hours on 1 charge, and can simply recharge it when the battery is empty. Lock the pendulum system after use to protect the DCE089D1G-QW during transport, or for the next job.