This product was a big disappointment. It's not able to receive the US Atomic Clock signal in south Florida (Miami). I have tried it at several locations in Miami. It has also problems to receive signals from the remote sensor when it's placed more than 20 feet from the main unit. A friend and me bought one each and both units have the same problems. You cannot even switch from F to C on the main unit, something that you can do on every digital thermometer I have seen, even on a $ 5.00 thermometer. No, I will return this thermometer, it is a bad product.