Tacklife Direct via Amazon offers its Tacklife Classic Digital Angle Gauge for $15.97. Coupon code "6PHQ4S33" cuts that price to $6.39. Plus, Prime members bag free shipping. That's $2 under our March mention and the lowest price we've seen. (It's a current low by $12.) It features a magnetic base and auto shut-off. Batteries are included. Deal ends April 19.