H.M.
I have never had a good experience with these. I wouldn't waste the money on it - stick to a good underarm/rectal, I love my vick's speed read - they are cheap and while not always fun to use - they are much more accurate - taking the ear temp is easy to mess up. I bought one and anytime I used it I didn't trust it so I would end up using the underarm one anyway. Something you might consider instead - they're also expensive, but I believe more accurate and easy to use is a the kind you rub over their forehead and then around the ear - that's what our peds office uses.