Meritline offers the Lumiscope Jumbo Display Digital Thermometer, model no. L2013, for $5.99. Coupon code "MLCH16YN" cuts it to $3.99. With free shipping, that's tied with our mention from a year ago as the lowest total price we've seen. (It's a current low by $15.) It's suitable for oral, rectal, or under arm use (please pick one and stick with it) and features a large digital display, and last temperature recall. Deal ends October 18.