Received these products as a Christmas gift. Shortly after installing them the Lightning detector started detecting lightning strikes on a clear cloudless day. It got up to a few thousand before I removed the batteries and replaced them with new NiCad. It has not recorded a lightning strike since. The batteries were not discharged. Now the weather station has started returning to the Default settings at any hiccup of any kind in the power supply[Why does it have a battery backup] Getting tired of resetting and loosing all data for the unit! Now the time/date mode will not let you reset the hour it just goes to minutes and you cannot stop it. It advances by 2 minute increments . Needless to say I am very upset with your product.