Etekcity via Amazon offers its Etekcity Mini Portable Digital Multimeter in Red, model no. MSR-R500, for $12.98. Coupon code "TEOX8OHV" cuts the price to $10.48. Plus, Prime members bag free shipping. (Non-members can spend $35 or more to qualify for free shipping; otherwise, shipping costs $6.79.) That's $26 off list, tied with our February mention, and the lowest total price we've seen. It features a backlit LCD display, 2-3 readings per second, low battery indicator, continuity buzzer, and overload protection. A 9-volt battery is required (included).