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Kidde · 30CUDR-CA
Kidde DETECT Combination Smoke + Carbon Monoxide Alarm (AA Battery)
Ventilation & air quality · For homes
$48to $89 · lowest of 4
See where to buyWhere to buy — 4 sellers
Emergency Lighting Services
specialistIn stock - usually ships within 1 to 3 business dayschecked Aug 10, 2026
$57
Canadian life-safety specialist with two Ontario locations (Etobicoke, Scarborough). Page lists model 30CUDR-CA / Kidde part 21031505 and quotes '$57.18 CAD each'.
AMRE Supply
specialistIn stock (strongest availability at Ontario branches; many branches show 0 on hand)checked Aug 10, 2026
$66
Canadian property-maintenance supply distributor. Part page is keyed on model 30CUDR-CA.
Kidde Canada online store
specialistchecked Aug 4, 2026medium confidence
$89
Original verified listing from the Aug 2026 catalogue build.
Aurora Industry
specialistUnknown - not stated on pagechecked Aug 10, 2026medium confidence
$48
lowest
Listing title is 'Kidde 21031505, 30CUDR-CA, DETECT Series Combination Smoke & Carbon Monoxide Alarm, AA Battery Powered'. Price read from the page's product metadata (og:price:amount 47.89, og:price:currency CAD) rather than a rendered price element.
About it
One alarm on your ceiling that listens for both smoke and carbon monoxide, the gas you can't smell. Carbon monoxide alarms are legally required on every storey with a fuel appliance in most of Canada, and one unit does both jobs.
Fitting it
Screw the bracket to the ceiling, twist the alarm on, put the batteries in - ten minutes
Delivery
Small light box, about 0.4 kg. Ships with alkaline AA cells - no lithium, so no dangerous-goods paperwork. · 0.4 kg
Approvals
Canadian-market model (the -CA suffix); certified to CAN/ULC-S531 for smoke and CAN/CSA 6.19 for carbon monoxide. Do NOT substitute the US model number - a US-only alarm does not meet Canadian code.
Good to know
Deliberately choose the AA replaceable-battery version over any sealed-lithium 10-year unit: sealed lithium alarms can trip courier dangerous-goods rules, this one ships
