#1 Brand Among Pediatricians And Moms*(Replaces Model 4520) Professional Technology Helps Ensure Accuracy Every Time Fast Gentle &Amp Easy To Use Recommended For Infants Children &Amp Adults Designed To Give You Some Peace Of Mind When Your Child Comes Down With A Fever The Braun Thermoscan Ear Thermometer With Exactemp Technology Delivers Accurate Temperature Readings That You Can Trust. Used By More Pediatricians Offices Than Any Other Infrared Thermometer Brand The Thermoscan Features A Pre-Warmed Tip That Improves Accuracy A Unique Guidance System That Ensures Precise Results And Infrared Technology That Takes Your Child S Temperature In Seconds. Proven More Accurate Than Rectal Or Temple.** Exclusive Pre-Warmed Tip Enables Repeatable Accuracy. Guidance System Gives Visual And Audible Reassurance That The Thermometer Has Been Positioned Correctly. Last Memory Recall.**Measurements In Detecting Temperature Changes. Nimah Marianne M. Et Al.&Quot Infrared Tympanic Thermometry In Comparison With Other Temperature Measurement Techniques In Febrile Children.&Quot Pediatr Crit Care Med 7.1 (2006): 48 - 55. Model Number IRT6500US