Yugoo via Amazon offers the YuGoo HD WiFi Borescope Inspection Camera for $31.69. Coupon code "VIJW7L2I" cuts the price to $22.50. With free shipping, that's $3 under our mention from two weeks ago, $9 off list, and the lowest price we've ever seen. It displays on your smartphone via WiFi, and features 1200p HD resolution, a 16.5-foot cable, and waterproof glasses. Deal ends May 1.