Smoke & CO Alarms
Smoke alarms, carbon monoxide alarms and combination units, plus replacement batteries for models that take them. Many smoke alarms are replaced about 10 years after manufacture; CO alarms often have a 5–10 year life — check the date on the back and your local code. Brand names are compatibility only.
Items
| Item | SKU (internal) | Price | |
|---|---|---|---|
| Battery-operated smoke alarm | MM-SCA-001 | Price coming soon — request a quote | Request a quote |
| Hardwired smoke alarm with battery backup | MM-SCA-002 | Price coming soon — request a quote | Request a quote |
| Battery-operated carbon monoxide alarm | MM-SCA-003 | Price coming soon — request a quote | Request a quote |
| Combination smoke and carbon monoxide alarm | MM-SCA-004 | Price coming soon — request a quote | Request a quote |
| 10-year sealed-battery smoke alarm | MM-SCA-005 | Price coming soon — request a quote | Request a quote |
| Alarm replacement battery, 9V | MM-SCA-006 | Price coming soon — request a quote | Request a quote |
| Interconnect-compatible smoke alarm (by wiring type) | MM-SCA-007 | Price coming soon — request a quote | Request a quote |
Attributes we list for each item: Alarm type, Power source, Interconnect (yes/no), Replacement battery (if any).
Buying guides
- Which battery does a smoke or CO alarm take?: How to identify the right replacement battery for a smoke or carbon monoxide alarm, plus testing and replacement reminders.
FAQ
When should I replace the whole alarm?
Most makers and NFPA guidance call for replacing smoke alarms about 10 years after the date of manufacture, and CO alarms on the schedule printed on the unit. If the alarm chirps after a new battery, it may be at end of life.
Hardwired or battery-operated?
If your current alarm is connected to house wiring, request a hardwired unit of the same interconnect type. If it only uses batteries, a battery-operated unit is the usual match.
Do you install alarms?
No. We quote the unit. Installation, especially hardwired interconnect systems, may require a licensed electrician.