Metene via Amazon offers its Metene Digital Infrared Forehead Thermometer for $29.99. Coupon code "LEXK7O76" cuts it to $19.99. Plus, Prime members receive free shipping. (Non-members can spend $49 or more to qualify for free shipping; otherwise, shipping costs $6.25.) That's tied with our mention from three weeks ago, $49 off list, and the lowest total price we could find. This non-contact instant thermometer features a backlit LCD and is calibrated to be accurate to 0.3°F. Two AAA batteries are required and included. Deal ends December 31.