Title: Unreliable technology
Product review: With inexpensive lasers available which are quite accurate, why would anyone rely on the unreliable "sonic" technology (it is not a laser) used by this unit. Sometimes the measurement is correct, sometimes it is widly incorrect. You never know. The problem occurs with measurements that are "sort of" correct but not really and are not caught. These innacuracies can cost time and money later on. Buy a real laser instead and get reliable measurements the first time around. This is generally not worth the trouble. However, the little red dot is fun if you have a pet.
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