Kidde 20SA10 Hardwired Smoke Alarm with 10-Year Backup vs Kidde 20SD10 / 20SD10-V 10-Year Battery Smoke Alarm

Side-by-side specs from each maker.

Only the differences are shown.

Kidde 20SA10 Hardwired Smoke Alarm with 10-Year BackupKidde 20SD10 / 20SD10-V 10-Year Battery Smoke Alarm
TypeSmoke or CO alarmSmoke or CO alarm
Alarmsmokesmoke
PowerHardwired with 10-year backup battery10-year battery
InterconnectwiredNot listed
Standards (maker)Kidde DETECT alarms are designed to the latest UL standardKidde DETECT alarms are designed to the latest UL standard
Replace after10 years10 years
Maker's warningsAlarm beeps to replace it 10 years after it is poweredAlarm beeps to replace it 10 years after it is powered

Kidde 20SA10 Hardwired Smoke Alarm with 10-Year Backup

A hardwired smoke alarm with a 10-year backup battery that interconnects with other Kidde alarms by wire.

  • 10-year backup battery
  • Hardwire interconnect
  • Reminder beep at 10 years
  • Needs household wiring

Kidde 20SD10 / 20SD10-V 10-Year Battery Smoke Alarm

A smoke alarm with a sealed 10-year battery and a reminder beep to replace it 10 years after it is powered.

  • No battery changes
  • No wiring
  • Twist-and-click mount