Mains Powered Heat Alarm with Back-Up Battery - Kidde Firex Sentry KF31
The Kidde KF31 and KF31R are mains-powered heat alarms designed for reliable fire detection in kitchens, garages, and other high-risk areas, combining a 230V AC supply with either alkaline or self-charging lithium battery backup for continuous protection, along with a Quick Fit base and interlink capability for full-property coverage.
- 230V mains-powered with either alkaline or self-charging lithium battery backup
- Ideal for installation in kitchens and garages, featuring a thermistor heat sensor
- Heat alarms reduce the number of false alarms from cooking fumes and dust
- Suitable for installations complying to Grade D1 (lithium) or Grade D2 (alkaline)
- 10 year warranty
- Interconnectable with up to 23 other Kidde/Firex alarms, with Quick-Fit base
- Kitemarked to
- CE and UKCA marked
- Featuring a LED display, alarm memory function, and a tamper-resistant design
- Loud 85dB alarm at 3 metres
- Test/Hush button with low battery warning chirp – can be silenced for 8 hours
- Supplied with free dust cover and fixings: 2 x screws and 2 x rawl plugs
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Review this product nowTechnical Data
| Product Code | KEKF31 |
|---|---|
| Brand | Kidde |
| Manufacturer's Part Number | KF31 |
| Approvals & Markings | CE Marked |
| UKCA Marked | |
| Back-Up Battery Type | Alkaline |
| British Standard Grade | Grade D2: Mains Powered (replaceable backup) |
| Colour | White |
| Compatible Products | Kidde Firex Alarms |
| Compliance | BS 5446-2: 2003 |
| BS 5839-6 | |
| Connection | Wired |
| Fixing Options | Screws (included) |
| Installation Position | Ceiling |
| Wall | |
| Local Legislation | Scottish Legislation (2022) |
| Welsh Legislation (2022) | |
| Material | Plastic |
| Maximum Number of Linked Devices | 24 Devices |
| Operating Temperature | -10°C To +40°C |
| Power Type | Mains Powered (230V) |
| Recyclable | Yes - Valpak's WEEE Distributor Take-back Scheme |
| Relative Humidity | Up To 93% |
| Sensor Type | Heat |
| Sound Level | 85dB |
| Storage Temperature | -20°C To +60°C |
| Warning Type | Audible - Alarm Sounder |
| Warranty | 10 Years |
| Dimensions (Unit) |
|
| Weight | 281g |
| Datasheets |
