Fire & Safety Solutions
OPEN 7 DAYS A WEEK 0800 612 6537
Lines open today 8:30am - 5pm
Low Cost Delivery
From £4.79 inc VAT
Secure Online Payments
with our quick & easy checkout
Live Online Customer Chat
Operators Available Now
Excellent Feedback - 4.9 / 5 Stars
Mains Powered Interconnectable CO Detector - Kidde 4239HIR
Discontinued Product
This product has been discontinued.
alternative product
Mains Powered CO Alarm - Kidde 4MCO
- Product Lifespan: 7 years
- Power: 230V mains powered with battery backup
- Backup Battery: Rechargeable lithium battery
- Warranty: 7 year warranty
- Available with LED or digital display
- Can be interlinked with smoke and heat alarms
- CE marked and Kitemarked to BS EN 50291-1 (domestic use)
- Suitable for ceiling installation
- Also suitable for the 2022 Scottish legislation
£49.67 inc VAT
£41.39 ex VAT
Product Overview
Interconnection
FAQs (1)
- 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
- Detector alarms from: 30ppm (parts per million) CO gas
- 6 year warranty
- End of Life warning signal alerts you when alarm needs replacing!
- Kitemarked to BS EN 50291:200
- With base plate for simple installation
- Dimensions (HxWxD): 147x147x42mm
The table below shows all the units that can interconnect with the KE423/9HIR and KE423D/9HIR mains powered CO alarms.
Technical Data
Kidde Firex Range
| Model Number | Type of unit | Type of interconnection |
| KE4870 | Ionisation Alarm | Hard wire interconnection |
| KE4881 | Ionisation Alarm with Rechargeable Lithium Battery | Hard wire interconnection |
| KE4973 | Optical Alarm | Hard wire interconnection |
| KE4985 | Optical Alarm with Rechargeable Lithium Cell | Hard wire interconnection |
| KE4892 | Heat Alarm | Hard wire interconnection |
| KE4899 | Heat Alarm with Rechargeable Lithium Battery | Hard wire interconnection |
Kidde 9HI / HILL Range (Discontinued)
| Model Number | Type of unit | Type of interconnection |
| KE1239HI | Ionisation Alarm with Alkaline Battery | Hard wire interconnection |
| KE1239HILL | Ionisation Alarm with Lithium Battery | Hard wire interconnection |
| KE2239HI | Optical Alarm with Alkaline Battery | Hard wire interconnection |
| KE2239HILL | Optical Alarm with Lithium Battery | Hard wire interconnection |
| KE3239HI | Heat Alarm with Alkaline Battery | Hard wire interconnection |
| KE3239HILL | Heat Alarm with Lithium Battery | Hard wire interconnection |
| Product Code |
|
||
|---|---|---|---|
| Brand | Kidde | ||
| Dimensions (HxWxD) | 147x147x42mm |
||
| Operating Temperature | 4°C to 38°C |
||
| Power Type | Mains Powered |
||
| Relative Humidity | 15% to 95% Relative Humidity |
||
| Sensitivity | 30ppm (parts per million) CO gas |
||
| Sound Output | 85dB |
||
| Visual Display | Backlit Digital Display |
||
| Warranty | 6 Years |
||
| Weight | KE4239HIR: 0.4kg |
||
| Product Datasheets |
Q. I purchased 4 alarms for my property recently via Safelinc's website. My electrician has installed them over the weekend.
However we have the following issue:
When you press the test button on the Carbon monoxide alarm the carbon monxide alarm goes off (but no alarm sound is heard on the other 3 connected smoke alarms).
This seems strange given that when you test any of the 3 smoke alarms, an alarm sound can be heard on the carbon monoxide alarm.
Is this meant to be like this?
The alarm models are:
1. Carbon Monoxide Firex 4985
2. Firex Ioisation 4881
3. Firex Ionisation 4870
4. Firex Optical 4985
However we have the following issue:
When you press the test button on the Carbon monoxide alarm the carbon monxide alarm goes off (but no alarm sound is heard on the other 3 connected smoke alarms).
This seems strange given that when you test any of the 3 smoke alarms, an alarm sound can be heard on the carbon monoxide alarm.
Is this meant to be like this?
The alarm models are:
1. Carbon Monoxide Firex 4985
2. Firex Ioisation 4881
3. Firex Ionisation 4870
4. Firex Optical 4985
A.
The reason is the relevant British Standard which requires a different alarm sound for CO alarms in comparison to smoke alarms.
To achieve this, the CO alarm in question has a dual sound capability, meaning that
- if a smoke alarm is triggered or tested, the CO alarm detects that a smoke alarm has gone off and will activate one of its two internal sounders (sounding like a smoke alarm).
- if the CO alarm is tested or triggered, only the CO alarm sounds (sounding like a CO alarm). The smoke alarms are in this case not allowed to sound. As said above, this is a stipulation from BSI
Approved Partner
Customer Reviews
2 customers have given this product an overall rating of 5 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: 5 / 5 Stars
Reviewed by:
Does the job as described
Published on: 20th September 2013
Rating: 5 / 5 Stars
Reviewed by:
Excellent product
Published on: 29th April 2013
Related Products
STI 9601 - 210x70mm Vandal Cage for Smoke, Fire and CO Detectors
Write a review£21.35 inc VAT
£17.79 ex VAT
Mains Powered Smoke Alarms & Heat Alarms with Alkaline Back-up Battery - Kidde Firex KF Series
4.8 out of 5 stars£17.75 inc VAT
£14.79 ex VAT
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