This MOBI® DualScan Prime Ear and Forehead Thermometer measures temperature via forehead and ear (for all ages). One thermometer for everyone! You can measure the room, bottle and bath water temperature. Fast results in seconds by pressing and holding one button, you can read your body, food, bottle and bath water temperature in seconds. Simply hold 1 inch from object and press Scan. It can store up to 19 previous readings for easy recall of previous temperatures. Display reading in Fahrenheit or Celsius. It has auto shutdown so even if you forget to shut it down, this feature will prevent unnecessary battery usage by shutting down automatically.