Kidde 20SD10 / 20SD10-V 10-Year Battery Smoke Alarm vs Kidde 30CUD10 / 30CUD10-V 10-Year Combo

Side-by-side specs from each maker.

Only the differences are shown.

Kidde 20SD10 / 20SD10-V 10-Year Battery Smoke AlarmKidde 30CUD10 / 30CUD10-V 10-Year Combo
TypeSmoke or CO alarmSmoke or CO alarm
Alarmsmokecombo
Power10-year battery10-year battery
Standards (maker)Kidde DETECT alarms are designed to the latest UL standardUL Listed; designed to the latest UL standard for safety and reliability
Replace after10 years10 years
Maker's warningsAlarm beeps to replace it 10 years after it is poweredNot listed

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

Kidde 30CUD10 / 30CUD10-V 10-Year Combo

A battery-powered smoke and carbon monoxide combo alarm with a 10-year battery. A voice-alert version is a separate model.

  • 10-year battery, no battery changes
  • Not listed by the maker: price