Kidde 20SDR-VRF Wire-Free Interconnect Smoke Alarm vs Kidde 30CUAR / 30CUA10 Hardwired Combo
Side-by-side specs from each maker.
Only the differences are shown.
| Kidde 20SDR-VRF Wire-Free Interconnect Smoke Alarm | Kidde 30CUAR / 30CUA10 Hardwired Combo | |
|---|---|---|
| Type | Smoke or CO alarm | Smoke or CO alarm |
| Alarm | smoke | combo |
| Power | AA battery | Hardwired with battery backup |
| Interconnect | wireless | wired |
| Standards (maker) | Not listed | UL Listed; designed to the latest UL standard for safety and reliability |
| Replace after | Not listed | 10 years |
| Maker's warnings | All alarms must have the wire-free feature to connect | Not listed |
Kidde 20SDR-VRF Wire-Free Interconnect Smoke Alarm
A battery-powered smoke alarm that connects wirelessly to other compatible alarms and speaks a voice alert saying why it is sounding.
- Wire-free interconnect
- Voice alerts
- No rewiring for renovations
- Only works with compatible wire-free alarms
- 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