The Safety 1st 3-in-1 Nursery Thermometer lets you choose the best way to check temperature when your child isn t feeling well. It can be used orally, rectally, or under the arm and beeps when the reading is complete. The flexible tip is more comfortable for baby during a rectal reading and features an over-insertion gauge that gives parents added confidence while checking for fevers, so that they can focus on helping baby feel better. The 3-in-1 Nursery Thermometer includes both a protective storage case and a long life battery.