Best Combination Smoke Carbon Monoxide Detectors Deals Online in the UK (24 Deals Found)

Last Updated - 14/09/2026 Sort By:

Best Choice
Fireangel

New
FireAngel SCB10-R Combined Smoke & Carbon Monoxide Alarm/Detector for Home
DUAL PROTECTION: This combination carbon monoxide (CO) and smoke detector offers vital protection against both CO and fi

£29.97 £46.99
Kidde

New
Kidde 10SCO Combination Smoke and Carbon Monoxide Alarm with Voice Notification, white
Voice alarm feature

£24.90
New
Carbon Monoxide (CO) and Smoke Combination Detector Alarm - Kidde K10SCO
The Kidde K10SCO provides both smoke and carbon monoxide detection from one space-saving unit, and is backed by a 10 yea

£22.90
Yezala

New
Smoke & Carbon Monoxide Alarm with Digital LCD Display, Combination Smoke Alarm and Carbon Monoxide Detector Replaceable
DUAL PROTECTION: Features both smoke and carbon monoxide detection capabilities in a single unit with clear digital LCD

£19.99
New
Wireless Interlinked Smoke & Heat Alarm Kit UK Compliant - Build Your Own Bundle
Smoke & Heat alarms should be interlinked (All our kits are interlinked & tested before being dispatched).

£36.98
Best Value
X-Sense

New
X-Sense Smoke and Carbon Monoxide Alarm, 10-Year Battery, SC07,1 Pack
Attention: The SC07 Combination Smoke and Carbon Monoxide Alarm is not compatible with the SBS50 Base Station and does n

£27.71 £35.99
Kitire

New
2 Packs Smoke & Carbon Monoxide Alarm, Replaceable Battery, LCD Digital Display, 85dB Loud Siren, Hush & Self-Test, Dual
【Important Note】 This combination smoke and carbon monoxide alarm works as a standalone device and does NOT support inte

£34.28 £36.09
New
Kidde 5CO - 10 Year Life LED Carbon Monoxide Detector / CO Alarm with Batteries
The Kidde 5CO carbon monoxide alarm features a 10 year sensor life and is supplied with 2 x Duracell AA alkaline batteri

£15.12
Kidde

New
Kidde K10SCO Combination Smoke & CO Alarm with Voice Notification
Combine two detectors in one space-saving unit with the Kidde 10SCO Carbon Monoxide and Smoke Alarm

£24.24
New
Smartwares FGA-1304 Carbon Monoxide Detector CO Alarm 10-Year Sensor - Sealed
The Smartwares FGA-1304 Carbon Monoxide Detector CO Alarm is a reliable and essential device for ensuring safety in your

£17.99
Fenary

New
Combination Smoke and Carbon Monoxide Detector, Battery Powered Smoke and CO Alarm with LCD Display, Replaceable Battery
DUAL SENSOR PROTECTION: Combination smoke and carbon monoxide detector equipped with photoelectric smoke sensing technol

£19.99
Fireangel

New
FireAngel SB1-R Smoke Alarm and FA6813 Carbon Monoxide Detector Set
DUAL PROTECTION: This home safety duo offers essential protection against carbon monoxide and fire. The CO alarm detects

£22.99
New
Hispec Carbon Monoxide Alarm 10 Year Battery CO Detector HSA/BC/10 BS EN50291
Hispec HSA/BC/10 Carbon Monoxide Alarm | 10 Year Sealed Battery CO Detector.

£49.99
X-Sense

New
X-Sense Wi‑Fi Smoke and Carbon Monoxide Alarm, App Control, SC07-WX, 1-Pack
Attention: The SC07-WX Wi-Fi Smoke and Carbon Monoxide Alarm is not compatible with SBS50 base station and does not supp

£45.99
New
Kidde Carbon Monoxide Alarm 2030-DCR Detector & 2030-DSR Optical Smoke Alarm Set
Featuring a digital display to monitor CO levels, it will alert you with an 85dB alarm when CO concentrations reach unsa

£29.99
15% Off
X-Sense

New
X-Sense Smoke and Carbon Monoxide Alarm with Voice Alerts, XP0A-SR, 1-Pack
Important Note: The XP0A-SR Combination Smoke and Carbon Monoxide Alarm does not support interconnectivity or app functi

£25.49 £29.99
New
Carbon Monoxide Optical Smoke Alarm Set, 2030-DCR Detector 2030-DSR Kidde Bundle
🛡️ Kidde 2030 DSR Smoke Alarm & 2030 DCR Carbon Monoxide Alarm Bundle – 10-Year Protection.

£34.99
New
Kidde 7CO - 10 Year Life LED Carbon Monoxide Detector / CO Alarm with Batteries
Kidde 7CO - 10 Year Life LED Carbon Monoxide Detector / CO Alarm.

£16.95
New
Kidde Carbon Monoxide Detector, K7DCO 7DCO, CO Digital Alarm, Twin Pack of 2
It's also compliant with the updated 2022 Welsh legislation.

£37.99
New
HiSPEC Carbon Monoxide Detector White 10 Year Battery App Compatible HSA/BC/10
The HiSPEC Carbon Monoxide Detector in White is a reliable and essential home safety device that operates on a 10-year b

£9.19
New
FireAngel FA3322 Digital Carbon Monoxide Detector with LCD Display
Model: FA3322.

£32.24
New
Kidde 5DCO / Nighthawk NHDCO 10 Year Digital Carbon Monoxide Detector / CO Alarm
The Kidde 5DCO battery-powered carbon monoxide alarm features a 10 year lifespan and a sleek, slimline case which can be

£19.99
New
Hispec Carbon Monoxide Alarm 10 Year Battery CO Alarm CO Detector HSA/BC/10
Hispec HSA/BC/10 Battery Standalone Carbon Monoxide Alarm with Safespec Data Extraction.

£43.95
New
5 x Kidde K10LLCO Carbon Monoxide Alarm – 10 Year Sealed Battery
Model: Kidde K10LLCO.

£99.99

24 Combination Smoke Carbon Monoxide Detectors deals are available from: Amazon, eBay stores, starting from £9.19.
The biggest discount we found is 36% on FireAngel SCB10-R Combined Smoke & Carbon Monoxide Alarm/Detector for Home at Amazon.
The lowest price we found is £9.19 while the highest is £99.99.
Prices for the best Combination Smoke Carbon Monoxide Detectors deals average at £30.99.
Last updated on September 14, 2026.
We scanned these quality online stores and more to deliver you with the best offers online available for Combination Smoke Carbon Monoxide Detectors.