Best Rotary Laser Level - LaserLevels.review
The Johnson Level & Tool 40-6517 is a Class Illa rotary laser level with a power rating of ≤5mW. It has a dimensional specification of 6.4 x 29 x 16.8 inches with a weight of 19 pounds. The device is able to self-level within 3 degrees at a range of about 800 feet with an accuracy of within 1/8 of an inch at 50 feet.