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James Bond couldn't shoot holes in his archenemies with this laser, but he could project a level reference line up to 100 feet away. The Finish Line laser runs on three AA batteries and can be attached to a standard photographic tripod with a 1/4-20 thread. The manufacturer claims that the beam is accurate to within 1/4 inch in 100 feet, but even with 5-arc-minute vials (about seven times the sensitivity of a standard 4-foot carpenter's level), I think that's a little optimistic. My experience with similar levels is that a dot out at 100 feet can move about 1/2 inch vertically without any movement registering on the bubble. But either way, this system is certainly accurate