international sites

0800 612 2946

Mains Powered 4239HIR Interconnectable Carbon Monoxide Alarm

Our Price : £46.99 inc VAT

( £39.99 ex VAT)

Configure your product (show prices)

Low Stock
Low Stock

Your Basket has 0 items

Order Weight: 0kg

Subtotal: £0.00 inc VAT

Model Stock Levels Prices
Standard Alarm
Low Stock
Low Stock
£46.99 inc VAT
(£39.99 ex VAT)

hide prices

  • Kidde Proprietary Electrochemical sensor technology
  • Mains powered interconnectable carbon monoxide alarm
  • Re-chargeable sealed lithium battery backup
  • Test/Reset button and LED to allow simple verification of alarm operation
  • Loud 85db piercing alarm function
  • Sensitivity: 30ppm (parts per million) CO gas
  • Lifespan 6 years
  • 6 year warranty
  • End of Life warning signal alerts you when alarm needs replacing!
  • Kitemarked to BSEN 50291:200
  • With base plate for simple installation
  • Dimensions (HxWxD): 147x147x42mm
  • Replacement SMK23 Pattress
    The table below shows all the units that can interconnect with the KE423/9HIR and KE423D/9HIR mains powered CO alarms.

    Ionisation Smoke Alarms
    Model Number
    Type of Backup Battery
    Type of interconnection
    123/9HI 9V Alkaline Hard wire
    123/9HILL 10 Year Sealed Lithium Hard wire
    Optical Smoke Alarms
    Model Number
    Type of unit
    Type of interconnection
    223/9HI 9V Alkaline Hard wire
    223/9HILL 10 Year Sealed Lithium Hard wire
    Heat Alarms
    Model Number
    Type of unit
    Type of interconnection
    323/9HI 9V Alkaline Hard wire
    323/9HILL 10 Year Sealed Lithium Hard wire

    This is the technical data for the Mains Powered 4239HIR Interconnectable Carbon Monoxide Alarm.

    Dimensions (HxWxD) 147x147x42mm
    Sound Output 85dB (minimum) at 3m
    Temperature Range 4°C to 38°C
    Humidity Range 15% to 95% Relative Humidity

    Product Options

    Model Product Code Product Weight
    Standard Alarm KE4239HIR 0.4 kg

    Technical Data Sheets

    The following technical data sheets are available for this product:

    Contact our Expert

    Any Questions? Ask our product specialist...

    If you have a technical questions or query relating to this product why not contact our product specialist. Each of our specialists have specific training targeted towards their product area.

    Please enter your email address:
    Your question:
    Authentication image
    Please enter the letters from the image:

    One of our technical specialists will contact you within 24 hours (working days only) to answer your query.

    Our Social Networking Sites

    You can get in touch with us through your favourite social networks. Why not become a fan on Facebook or follow us on twitter.