Kidde 20SAR-W Smart Smoke Alarm vs Kidde 30CUD10 / 30CUD10-V 10-Year Combo

Side-by-side specs from each maker.

Only the differences are shown.

Kidde 20SAR-W Smart Smoke AlarmKidde 30CUD10 / 30CUD10-V 10-Year Combo
TypeSmoke or CO alarmSmoke or CO alarm
Alarmsmokecombo
PowerHardwired (120V AC) with 2 AA backup batteries10-year battery
InterconnectwiredNot listed
Standards (maker)ETL certificationUL Listed; designed to the latest UL standard for safety and reliability
Replace afterNot listed10 years
Maker's warningsAC power is required for full operation and Wi-Fi; batteries are backup only; do not use lithium batteriesNot listed

Kidde 20SAR-W Smart Smoke Alarm

A hardwired smart smoke alarm that sends alerts to the Kidde app over 2.4 GHz Wi-Fi and has two AA backup batteries.

  • Mobile alerts
  • Interconnects with hardwired alarms
  • AA backup batteries
  • Needs household wiring
  • Needs 2.4 GHz Wi-Fi

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