povlen stud finder wall scanner sensor - 5 in 1 stud sensor detector wall scanner with lcd display beam finders for the center and edge of metal wood ac wire studs pipe joist detection yellow is up for auction in Tools & Home Improvement. The current bid is $6.00, 82% below the $32.99 MSRP, in Good Condition. This auction has ended — similar items appear in live auctions regularly.