Best Kidde Space-Saving Pick

Kidde Hardwired Smoke & Carbon Monoxide Detector with Battery Backup

Worth the SpaceResearch Pick

Two kinds of detection in one wired alarm, because the ceiling does not need more accessories.

Around $120

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At a Glance

Best For

Wired homes that want smoke and CO detection in one space-saving device.

Skip If

Skip it if you prefer separate alarms or your home is not wired for compatible detectors.

Editorial usefulness scores—not customer ratings.

TIME4/5

MONEY3/5

EFFORT2/5

SPACE5/5

HEADACHE4/5

What do these scores mean?

TIME: How much time the product can save.
MONEY: How good the value is or whether it can help avoid unnecessary spending.
EFFORT: How much household work or friction it reduces.
SPACE: Whether it earns the space it occupies.
HEADACHE: How much annoyance, hassle, or future trouble it can prevent.

Why We Picked It

A hardwired Kidde combination alarm with battery backup, interconnection, and LED indicators.

Pros and Cons

Pros

Detects smoke and carbon monoxide
Hardwired interconnection
Battery backup
LED status indicators

Cons

Costs more than a single-purpose alarm
Compatibility requires checking
May require professional installation

Cheaper Alternative

Use separate First Alert SMI100-AC and Kidde COB alarms if that better fits your layout and budget.

Save Your Money

Keep compatible, in-date smoke and CO alarms you already have and test them regularly.

Domestic Enough Take

Research pick. Confirm the exact model, sensor details, wiring harness, and interconnect compatibility at the retailer.

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