QMTL via Amazon offers the Tacklife Classic Digital Multimeter, model no. DM02A, for $17.97. Coupon code "87K7CUNO" cuts it to $12.94. Plus, Prime members bag free shipping. (Non-members can spend $35 or more to qualify for free shipping; otherwise, shipping costs $6.70.) That's tied with last month's mention, $37 off, and the lowest total price we could find. It features a non-contact voltage test function, overload protection, continuity test, auto-ranging, auto power off, low battery indication, and a blacklit LCD display.