Product review (5 stars): Buying a second!
I am back to purchase another one of these, to add to the one I bought 2 years ago.  It is working so well, and automatically syncs up once you put the batteries in.  Other models and brands we have used seem to have a lot of trouble once the battery dies on re-finding the signal and it's always a huge headache.  I love this model because it is simple, easy to read, and has no maintenance.