Product review (5 stars): Better than anticipated
This little thermometer suits my needs, and having the humidity on such a simple device is a treat!  It is easy to read, and not complicated in any way.  The easy-to-open battery compartment is on the back of the thermometer.  It can be opened with a coin (I used a dime) by a half-turn.  Insert the battery that came with the thermometer, then use the dime to twist the battery cover on.  Also on the back, you can choose to use the kick-out stand so the thermometer rests at an angle.  Or you can choose not to use it, because the thermometer is almost a half-inch wide and stands on its own.  Your choice!

There are 3 red buttons on the front of the thermometer.  The bottom button switches between F and C.  The middle one will display Max and Min temps.  The top one clears it all out.  One simple touch of a button; doesn't get any better than that!

Easy peasy!  If you want a thermometer to work quickly and easily right out of the box, this is the one for you.