On March 21, 2018, Kidde issued a recall of 452,000 dual sensor (photoelectric and ionization) smoke alarms sold in the United States. The smoke alarms have the model numbers PI2010 (AC/hardwired) and PI9010 (DC/battery powered). "KIDDE" is printed on the front center of the smoke alarm. The model number and date code are printed on the back of the alarm.