Thousandshores Inc via Amazon offers the Dr.meter Stud Metal AC Wire Scanner for $19.99. Coupon code "5DO6XUCY" cuts the price to $16. With free shipping, that's $2 under our mention from last October and the lowest price we could find by $10 today. It features an audible stud tracker, backlit LCD display, and multi-mode detection. Deal ends March 15.