The CPSC said the top hat on the Step 2 My First Snowman toy can break into small pieces and pose a choking hazard.

The First Alert L1 is a battery-powered sensor that ... and the bottom holds a pair of water sensors and a removable cover for the battery compartment. The status LED flashes orange to warn ...

Note that the battery-powered model (reviewed here) is powered not by standard AAs but rather by a three-cell lithium power pack. First Alert says this battery is rated to last five years ...

It wasn't clear whether something with my network setup or some other factor was causing excessive battery drain, and First Alert later issued a firmware update intended to address the battery ...