OPEN 7 DAYS A WEEK 0800 612 6537 Lines open today 8am - 8pm

Carbon Monoxide Detector (Digital Display) - Kidde 900-0230

Discontinued Product

This product has been discontinued.

alternative product

Kidde 5DCO 10 Year Digital CO Alarm

  • FREE delivery
  • Product Life: 10 years
  • Battery: AA batteries included
  • Warranty: 7 year warranty
  • Peak Level Memory - recalls highest CO levels
  • Digital display shows CO levels from 30ppm
  • Kitemarked to BS EN 50291-1
  • CE Marked
  • Also suitable for the 2022 Welsh legislation

£14.99 inc VAT

£12.49 ex VAT

View Product
Product Overview
The Kidde 900-0230 is a digital Carbon Monoxide alarm with slim line designer casing. The alarm incorporates both highly effective detector technology and a sleek finish. The digital display shows carbon monoxide readings that are taken every 15 seconds, indicating any changes in CO levels. The alarm can be wall mounted or free standing.
  • Digital displayof CO readings
  • Battery operated detector (batteries included)
  • Test/Reset button and digital display to allow simple verification of alarm operation
  • Loud 85db piercing alarm function
  • Displays CO levels from 10ppm
  • Detector alarms from: 30ppm (parts per million) CO gas
  • 7 year warranty
  • End of life warning signal alerts you when the alarm needs replacing
  • Warning "chirp" and digital display message indicates when batteries are low
  • Kitemarked to BS EN 50291:2001 and CE Marked 
  • Simple installation
  • Dimensions (HxWxD): 72x126x35mm
  • Download the User Guide
Technical Data
Product Code KE9000230
Brand Kidde
Dimensions (HxWxD)


Operating Temperature

4°C to 38°C

Power Type

Battery Operated

Relative Humidity

10% to 95% Relative Humidity


30ppm (parts per million) CO gas

Sound Output


Visual Display

Backlit Digital Display


7 years

Weight 0.40kg
Product Datasheets
FAQs (1)
Q. Can you zero the peak level on a Kidde CO detector, and if so how?

The best way to make sure the system is definitely zeroed is to press an hold the peak button first. While the peak number is still showing, continue to hold the peak button then press and hold the test and reset button whilst the first button is still held down. This should visibly reset the counter. If the unit continues to display between 20-30ppm directly after this process, then this could be indicative of a fault. If it shows zero straight away after the reset, then returns to 20-30ppm the next time it is checked, this would indicate a low level of CO being present in the house. At those low levels it would not be immediately harmful, but would definitely warrant investigation as soon as possible.

Excellent Warranty

This product is supplied with a 7 year manufacturers warranty as standard

Customer Reviews

32 customers have given this product an overall rating of 4.8 out of 5

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 Stars

Reviewed by:

Good product & reasonably priced.

Published on: 29th November 2013

Rating: 5 / 5 Stars

Reviewed by:

Good value easy to set up

Published on: 9th November 2013

Rating: 5 / 5 Stars

Reviewed by:

great easy to read with digital display. So many people are still so unaware about the dangers of carbon monoxide poisoning. My life was saved by a C.M detector after a leak from a gas fire in a new house.

Published on: 7th October 2013

Rating: 5 / 5 Stars

Reviewed by:

Great to have peace of mind I can now sleep easier knowing that this monitor will alert me if anything is wrong with my boiler.

Published on: 28th June 2013

Rating: 5 / 5 Stars

Reviewed by:

Does what it says on the tin! Nice loud alarm, easy to fix, easy to test. Will buy exactly the same when I need another alarm.

Published on: 26th June 2013

Rating: 4 / 5 Stars

Reviewed by:

quality product

Published on: 22nd June 2013

Rating: 5 / 5 Stars

Reviewed by:

Product has been installed and remains quietly sentinent !

Published on: 17th June 2013

Rating: 5 / 5 Stars

Reviewed by:

excellent value for money

Published on: 16th June 2013

Rating: 5 / 5 Stars

Reviewed by:

Well made compact product. Fits well in surroundings

Published on: 4th June 2013

Rating: 5 / 5 Stars

Reviewed by:

Brilliant for use in the home.We actually bought this for our caravan after hearing about the boat tragedy on Windemere. It was slightly tricky finding a place to put it following manufacturers distance rules etc, but we have it installed and feel safer now.

Published on: 1st June 2013

Show More

Looking for more information?

If you have any questions or would like more information about this product you can ask one of our specialists.

Live Chat Available Now
Direct Telephone 01507 464182