I just had to buy a new Braun Thermoscan last week when my 15 y.o. got sick. Our old one circa 1996 or so bit the dust!
The first temp I take I always disregard.
Then I take it again in both ears and average it out because both ears are never the same!
There's always been controversy as to their accuracy, but if it's only off a few points, to me, it doesn't matter that much.