Sanpu via Amazon offers its Sanpu Digital Basal Oral Thermometer for $12.99. Coupon code "REB43WAD" drops it to $7.66. Plus, Prime members bag free shipping. That's a slight drop from our mention from three weeks ago and the lowest price we could find now by $5. This water-resistant thermometer is compatible with oral, rectal, or armpit use and features a flexible probe, 8-second quick read, backlit LCD, °F/°C measurement, visual high-temperature alert, memory recall, and auto-off.