Title: Needs glasses
Product review: It works! The only problem is that it needs glasses because in an open wall test we found that it found the stud sometimes one inch before it started and stopped seeing it one inch after it stopped. In the case of metal, it saw even wider (cross-eyed maybe) and saw a 3/4 copper pipe as 4 inches wide. My old Zircon was more precise and so was the newer Pro SL.
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