Kidde 20SAR Hardwired Smoke Alarm with AA Backup vs Kidde 30CUAR / 30CUA10 Hardwired Combo
Side-by-side specs from each maker.
Only the differences are shown.
| Kidde 20SAR Hardwired Smoke Alarm with AA Backup | Kidde 30CUAR / 30CUA10 Hardwired Combo | |
|---|---|---|
| Type | Smoke or CO alarm | Smoke or CO alarm |
| Alarm | smoke | combo |
| Power | Hardwired with 2 AA backup batteries | Hardwired with battery backup |
| Interconnect | wired | wired |
| Standards (maker) | Kidde DETECT alarms are designed to the latest UL standard | UL Listed; designed to the latest UL standard for safety and reliability |
| Replace after | Not listed | 10 years |
| Maker's warnings | Change replaceable batteries every 6 months or when the low battery chirp sounds | Not listed |
Kidde 20SAR Hardwired Smoke Alarm with AA Backup
A hardwired smoke alarm with two replaceable AA backup batteries that connects to other Kidde alarms by wire.
- AA backup batteries
- Hardwire interconnect
- Twist-and-click mount
- Needs household wiring
- Batteries need changing
Kidde 30CUAR / 30CUA10 Hardwired Combo
A hardwired smoke and carbon monoxide combo alarm with battery backup that connects by wire to other Kidde alarms. The 30CUA10 has a 10-year backup battery and the 30CUAR uses AA batteries.
- Hardwired interconnect with other Kidde alarms
- 10-year backup battery on the 30CUA10
- Needs wiring into household power