Recently purchased this oral thermometer and am very pleased with how easy it is to use! Just one button for on and off. The large screen makes it easy to read and the best feature by far is that the screen lights up either green or red to indicate if you have a fever or not so you don't have to remember what numbers are a normal range.

It does require a watch type battery which is a bit of a nuisance, but no screwdrivers are needed and the battery does last a long time. The device will also automatically shut off on its own with a beep after a prolonged period of time.