Braun Infra Thermometer, Thermoscan 7, The Most Accurate Ear Thermometer From Braun Due To The Unique Pre-Warmed Tip. Unlike Other Ear Thermometer, Braun Thermoscan Features A Pre-Warmed Tip That Minimizes The Cooling Effect That Could Result From The Introduction Of A Cool Probe Tip. The Pre-Warmed Tip Helps Ensure Accuracy Measurement After Measurement. The Brand Most Used By Doctores. As Accurate As Rectal Measurements In Newborns.