Kidde
Kidde 30CUA10-V Smoke + CO Alarm, Hardwired with 10-Year Backup Battery & Voice Alerts
$74.97
Reference price as of 2026-09-01 — check Amazon for the current price and stock.
Best for whole-home hardwired alarm systems where interconnection and spoken alerts matter, e.g. a house with multiple existing hardwired smoke alarms being upgraded to smoke+CO.
Full spec sheet
| Key specs | |
| Brand | Kidde |
| Price | $74.97 |
| Capacity | — |
| Continuous output | — |
| Peak / surge output | — |
| Weight | — |
| Battery chemistry | Sealed lithium backup (10-year, non-replaceable) |
| Dimensions (L x W x H) | — |
| Includes solar panel | No |
| Use cases | Home |
| Other verified specs | |
| Type | Combination smoke + CO |
| Detector power source | Hardwired 120V AC with 10-year sealed lithium backup battery |
| Alerts | Voice + LED + interconnect capable |
| Price note | Estimated from retailer promo pricing — not manufacturer-confirmed |
Pros
- Hardwired with a 10-year sealed backup battery — no more crawling up to swap 9V batteries
- Voice alerts announce "Fire!" or "Warning! Carbon Monoxide" instead of just a generic tone
- Interconnects with other compatible Kidde hardwired alarms so the whole house alarms together
- Enhanced sensing reduces cooking-related false alarms
Cons
- Requires hardwiring — not a simple battery swap-in for a location without existing wiring
- Higher price than the battery-only 30CUD10 for the added wiring and voice features
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