Max distance 50ft, not 150ft. It doesn't work on 75' at night. The laser line is about 1/2 inch wide and blurry at 75 feet. The self-leveling "pendulum" is a joke. This "toy" is good for homeowners to align picture frames or hang kitchen cabinets, that's all. For your information, I am a qualified carpenter. The max distance I would use is 25 feet because it's not accurate or bright.
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