Metene via Amazon offers its Metene Digital Infrared Forehead Thermometer for $29.99. Coupon code "MSFQP29Y" cuts it to $19.79. Plus, Prime members receive free shipping. That's tied with our mention from three weeks ago as the lowest total price we've seen. (It's the best deal now by $20.) 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 May 31.