Smoke & CO Alarms
The alarms we’d put in our own homes.
Every alarm on this page runs on a 10-year sealed battery — no AA batteries, no 2 a.m. low-battery chirps, nothing to change for the life of the alarm. The hardwired models interconnect on the wire and the wireless ones link by radio, so when one sounds, they all sound.
Home Depot shelf prices — no markup.
Hardwired smoke & CO combos
The core of the house: 120V alarms on the ceiling wiring, with a sealed 10-year backup battery for power outages. Voice alerts say what the alarm is, out loud, in English and French. Tap any photo to see it larger.
Kidde Detect combo — hardwired, with voice
$99.97Hardware · Home Depot price · 30CUA10-VCA
Details
Our recommended alarm. Smoke and carbon monoxide in one hardwired unit, with bilingual voice alerts that say “Fire” or “Warning — carbon monoxide” out loud. Photoelectric sensor, self-testing, and wired interconnect, so when one sounds, they all sound.
Kidde smart combo — hardwired, app alerts
$114.00Hardware · Home Depot price · P4010ACSCO-WF-CA
Details
The app-connected one. Hardwired smoke and CO with voice alerts in the house, plus an alert to your phone through the Kidde app when you’re away. Sealed 10-year backup battery, and it interconnects on the wire with the other hardwired Kidde alarms.
The 3-in-1, with strobe
Smoke, CO and a bright LED strobe in a single unit — protection you can see as well as hear. The strobe is there for anyone who can’t rely on sound alone, and it’s the alarm Ontario’s Building Code asks for in sleeping rooms on new work.
Kidde 3-in-1 — smoke, CO and strobe
$179.00Hardware · Home Depot price · P4010ACLEDSCOCA
Details
Smoke, carbon monoxide and a 177-candela LED strobe in one hardwired unit, with bilingual voice alerts. Sealed 10-year backup battery, and it interconnects with up to 24 Kidde devices, so the strobe flashes wherever the alarm starts.
Kidde smoke alarm with strobe
$159.00Hardware · Home Depot price · P4010ACLEDSCA
Details
The strobe version without the CO sensor: a hardwired smoke alarm with a 177-candela LED strobe and voice alerts, for halls and rooms where CO coverage already exists. Sealed 10-year backup battery and wired interconnect.
Wireless interconnect
Alarms that talk to each other by radio instead of a wire. One sounds, they all sound — with no new wiring, which makes them the answer for finished homes and older houses that were never wired for interconnect.
Kidde wireless combo — battery, with voice
$104.00Hardware · Home Depot price · P4010DCSCO-WCA
Details
No wiring at all: a sealed 10-year battery runs it for its whole life. Smoke and CO in one unit with bilingual voice alerts, and the alarms link wirelessly — when one sounds, they all sound. The way to interconnect a finished house without opening walls.
Kidde wireless smoke alarm — battery
$64.97Hardware · Home Depot price · P4010DCS-WCA
Details
The smoke-only wireless alarm, on the same sealed 10-year battery and with voice alerts. It pairs wirelessly with the combination alarm above, so bedrooms get smoke coverage that joins the whole-house alarm.
A note on the smart alarm
We fit the smart alarm, wire it and test it. Pairing it with the Kidde app on your phone is yours to do — it takes a few minutes, and your app account stays with you, not with us.
All hardware prices plus HST.
Add alarms to your visit.
Mention the alarms when you request your quote and they’re priced into the job upfront. Fitted by licensed electricians, wired to Ontario code, and covered by our 10-year workmanship warranty.
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