FEVER OR FINE IN A FLASH: Delivers a 10 second quick read KEEP YOUR COOL: Parent-proof rectal insertion stopper to keep you from inserting too far, and large display with backlight makes nighttime temp checks easier. TUSH TEMP: AAP recommends that for at least the first year of baby’s life (though up to three is best), temp checks should only be done rectally. Plus, the parent-proof stopper with an LED light makes tush temp checks worry-free.