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The 900-0230 premium carbon monoxide alarm has a backlit digital display that constantly monitors CO levels. It even has a peak level memory, so you can check after for when you have been away.

Known as the silent killer, carbon monoxide is killing or endangering people every year, in premises from HMOs to hotels to schools. BSi Kitemarked to BSEN 50291:2001, this alarm comes complete with a test button and batteries (and low battery indicator bleep). It will even free stand and is suitable for taking on holiday. Kidde makes 30 million detectors every year and this could be the best money you ever spend.

The standard version takes AA batteries which will need replacing periodically and is ideal for the home. The sealed battery version comes with a 10 year lithium battery which will last as long as the alarm, and is perfect to prevent tampering.

Use the drop down menu on the side to select either the standard or sealed battery version - ONLY the sealed version is compliant with new 2022 Scottish Regulations.
PLEASE NOTE - Kidde have DISCONTINUED and replaced the 900-0146 with this model 900-0230
Suitable for any premises where people sleep or live - portable
Full instructions with every detector
Fixing requires two little screws and wallplugs (supplied) to screw to wall
  • 10-year warranty
  • BSi Kitemarked to BSEN 50291:2001, CE Marked, UL approved
  • Batteries and fixings included
  • Sensor lasts for 10 years
  • Diameter 136 mm
  • Depth 35.5 mm
  • Manufactured by Kidde
Customer reviews
Average rating:
4.84 (Votes: 93)
Rating of votes (93)
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  • june neal
    Feb 18, 2017, 16:49
    Excellent service would recommend to anyone.
  • Bill
    Feb 7, 2017, 13:37
    Thank you for good service ta ..
  • d b morgan
    Feb 5, 2017, 11:13
    very pleased with the goods,and the very fast delivery service,found smoke co2 alarms very easy to fit,thank you
  • Reg Brindley
    Nov 23, 2016, 12:00
    Excellent service. CO alarms arrived very swiftly and well packaged. I'm very confident of the service I'm going to get when purchasing from Fire Protection Online.
  • Bushan
    Jun 30, 2016, 08:31
    great service

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    Score: 4.84 (votes: 93)
    Reviews: 93