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- Carbon Monoxide Detectors
Mains Powered 4239HIR Interconnectable Carbon Monoxide Alarm
  
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- Kidde Proprietary Electrochemical sensor technology
- Mains powered interconnectable carbon monoxide alarm
- Re-chargeable sealed lithium battery backup
- Available in 2 versions:
- 423/9HIR - LED display
- 423D/9HIR- LCD digital display
- 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
- Download the Datasheet
- Download the User Guide
- Replacement SMK23 Pattress
The table below shows all the units that can interconnect with the KE423/9HIR
and KE423D/9HIR mains powered CO alarms.
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Model Number |
Type of Backup Battery |
Type of interconnection | | 123/9HI | 9V Alkaline | Hard wire | | 123/9HILL | 10 Year Sealed Lithium | Hard wire |
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Model Number |
Type of unit |
Type of interconnection | | 223/9HI | 9V Alkaline | Hard wire | | 223/9HILL | 10 Year Sealed Lithium | Hard wire |
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Model Number |
Type of unit |
Type of interconnection | | 323/9HI | 9V Alkaline | Hard wire | | 323/9HILL | 10 Year Sealed Lithium | Hard wire |
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Any Questions? Ask our product specialist...
One of our technical specialists will contact you within 24 hours (working days only) to answer your query.
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