Kidde 20SA10 Hardwired Smoke Alarm with 10-Year Backup vs Kidde 50CUA10-S Smoke + CO Alarm with Strobe

Side-by-side specs from each maker.

Only the differences are shown.

Kidde 20SA10 Hardwired Smoke Alarm with 10-Year BackupKidde 50CUA10-S Smoke + CO Alarm with Strobe
TypeSmoke or CO alarmSmoke or CO alarm
Alarmsmokecombo
PowerHardwired with 10-year backup batteryHardwired with sealed 10-year backup battery
InterconnectwiredNot listed
Standards (maker)Kidde DETECT alarms are designed to the latest UL standardNot listed
Replace after10 yearsNot listed
Maker's warningsAlarm beeps to replace it 10 years after it is powered177 candela strobe flashes with the horn; interconnected alarms sound and flash together

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 50CUA10-S Smoke + CO Alarm with Strobe

A hardwired smoke and carbon monoxide alarm with a 177 candela strobe, a sealed 10-year backup battery and interconnect capability.

  • Strobe for visual alerts
  • 10-year backup battery
  • Smoke and CO in one unit
  • Needs household wiring