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Carbon Monoxide Alarm with Digital Display and 10 Year Warranty - Kidde K7DCO

Kek7Dco Kidde 7Dco Digital Carbon Monoxide Alarm showing front display with screen and buttons on white background
4.8 out of 5 stars

20+ In Stock

For dispatch today order within
11 Hrs 51 Mins
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£18.25 inc VAT

£15.21 ex VAT

Qty: 2

£17.23 inc VAT

£14.36 ex VAT

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£16.61 inc VAT

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Standard Delivery

Will usually be delivered in 2-3 working days

£4.20 inc VAT

Next Day Delivery

Will usually be delivered the next working day

£7.00 inc VAT

The Kidde K7DCO carbon monoxide alarm features a 10 year life and a digital display for continuous monitoring of CO levels. Certified for use in homes, caravans and boats, this CO alarm protects you against the dangers of carbon monoxide gas in domestic and travel settings. Powered by two replaceable alkaline batteries, the K7DCO has a digital display screen to show current CO level, and a button which allows peak level recordings to be displayed. The K7DCO replaces its predecessor (7DCO) and can be fitted to existing 7DCO and 7CO baseplates.

  • Designed for the home and for travel (camping, caravanning and boats)
  • Available with optional soft pouch to protect your CO alarm during travel!
  • Product Life: 10 years
  • Battery: 2 x Duracell AA alkaline batteries included
  • Warranty: 10 year warranty
  • Free-standing or wall mounted (plate and fixings supplied)
  • CE Marked, UKCA Marked and fully certified for use on caravans and boats
  • Digital display provides several readings:
    • Current CO level
    • Peak CO level since last reset – 11ppm to 999ppm
    • Low battery warning (in addition to an audible "chirp")
    • End-of-life warning after 10 years
  • Kitemarked to BS EN 50291-1:2018 (domestic use) and BS EN 50291-2 (camping / caravans / boats)
  • Detector sounds a loud 85db warning alarm when CO is detected
  • Test/Reset button and digital display allows for easy testing and CO monitoring
  • End of life warning signal provides a reminder for alarm replacement
  • Dimensions (HxWxD): 72 x 119 x 39mm
  • This alarm is also suitable for the updated 2022 Welsh legislation

Please note: the packaging may state "excludes batteries" but this is regarding the warranty period; the K7DCO is supplied with suitable batteries.

Key Product Features

Closeup of buttons labelled Test weekly Reset and Peak Level on kidde co digital alarm

See the peak CO level recorded at the press of a single button

Closeup of indicators on the Kidde co digital alarm showing Alarm, Operate and Fault labels above a digital display

LED indicators for alarm (red), power (green), fault (amber)

Closeup of the sounder vents on a Kidde co digital alarm showing part of the display and casing

Loud 85dB alarm alerts occupants to the presence of deadly gas

Kidde co digital alarm with two batteries, mounting screws, and a plastic cover plate showing the front panel controls and display

Includes screws and mounting plate for easy wall mounting

What's Included?

The KE7DCO CO alarm is supplied with the following components.

  • 1 x Kidde 7DCO carbon monoxide alarm
  • 2 x AA batteries
  • 1 x Screw fixing set (screws & rawl plugs)
  • 1 x Instruction manual
KE7DCO Dimensions
Customer Reviews

Customer Reviews (128)

4.8 out of 5 stars

Reviews by Real Customers

All of our product reviews are written by real customers that have purchased this product from us and are published without modification.

Rating: 4 / 5

Reviewed by

C R

Published on

5th April 2026

Does the job.

Applies to option(s): Without Travel Pouch

Rating: 5 / 5

Reviewed by

N L

Published on

9th January 2026

excellent advice given

Applies to option(s): Without Travel Pouch

Rating: 5 / 5

Reviewed by

D M

Published on

27th April 2025

Excellent product.

This was bought to replace our previous version which is now life expired.

Applies to option(s): Without Travel Pouch

Rating: 5 / 5

Reviewed by

K H

Published on

13th April 2025

Easy to set up & gives all safety info needed to feel safe

Would by this product again

Applies to option(s): Without Travel Pouch

Rating: 5 / 5

Reviewed by

B C

Published on

11th April 2025

Very good quality, price and safe delivery

Applies to option(s): Without Travel Pouch

FAQs

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Technical Data

Technical Data

Product Code KEK7DCO
Brand Kidde
Battery Type AA Batteries
CO Alarm Level (parts per million) From 50ppm
CO Detection Level (parts per million) From 11ppm
Connection Standalone
Approvals & Markings CE Marked
UKCA Marked
Compliance BS EN 50291-1 (Domestic)
BS EN 50291-2 (Caravans / Boats / Travel)
Display Digital Display
Environmental Suitability Caravan, Camping & Boats
Home
Travel
Fixing Options Screws (included)
Wall Mounted / Freestanding
Lifespan 10 Years
Local Legislation Welsh Legislation (2022)
Material Plastic
Operating Temperature +4°C To +38°C
Power Type Battery Powered
Recyclable Yes - Valpak's WEEE Distributor Take-back Scheme
Relative Humidity 10% To 95%
Sensitivity 30ppm (Parts per Million)
Sensor Type Electro-chemical
Sound Level 85dB
Warning Type Audible - Alarm Sounder
Warranty 10 Years
Dimensions (Unit)
  • Height: 72mm
  • Width: 119mm
  • Depth: 39mm
Weight 250g
Datasheets