I ended up digging out my older digital gauge I've had for probably 10 years now. I popped it open and it needed a new battery. This is the thing I don't really like about it, it uses two of the CR2032 coin batteries. I'd rather throw a few AAAs in it or something... oh well. It does work nicely though.
Here is the one I have. Its an Accutire pressure gauge. It seems many electronic ones have this same name though...
