









FireAngel HM-SN1 Sona White Mains Powered Thermistek Heat Alarm With Test/Hush, Lithium Battery Backup & Integrated Base
HM-SN1
Sona White Mains Powered Thermistek Heat Alarm – 10-Year Lithium Backup, Smart RF Ready
The Sona Thermistek Heat Alarm is a high-performance solution for fire detection in kitchens, garages, and lofts. Using Class A1 heat sensing and FireAngel’s unique Thermistek technology, it delivers a faster response to rapid temperature rise. Mains powered with a sealed 10-year lithium battery backup, it’s Smart RF compatible for easy wireless interlinking across a full domestic fire safety network.
- Class A1 Heat Detection: Activates between 54°C–65°C with radiant heat dish for faster fire response in high-risk areas like kitchens and garages.
- Mains Powered with 10-Year Battery: Sealed lithium backup ensures long-lasting protection even during power cuts.
- Smart RF Ready: Add a Smart RF Module (sold separately) to wirelessly interlink with other FireAngel Specification alarms and the Connected Home Solution via Gateway.
- User-Friendly Design: Integrated base with Test/Hush button and dust cap included to protect the unit during installation or renovations.
- Regulation Compliant: Fully certified to BS 5446-2:2003 and ideal for domestic properties, including social housing projects.
Technical Specification
- Power Supply: 230V mains with sealed 10-year lithium battery backup
- Sensing Technology: Thermistek heat sensor (Class A1, 54°C–65°C)
- Interlink: Smart RF compatible (module required)
- Compliance: BS 5446-2:2003
- Mounting: Integrated base with dust cap
- Suitable Locations: Kitchen, garage, loft
✅ Install the Sona Thermistek heat alarm for fast, reliable fire detection in high-risk areas—Smart RF ready and fully compliant for modern domestic projects!
Mounting Method | Surface |
Ean Code | 816317002572 |
Range | FireAngel Sona |
Product | Alarm |
Type | Fixed Heat |
Colour | White |
Voltage | 230V |
Warranty | 5 Years |
Unit Weight | 0.229 kg |
Mounting | Ceiling |
Material | ABS |
Width | 141.5 mm |
Depth | 53 mm |
Standards | BS 5446-2:2003 |
Ce Approved | N |
Biwire | N |
C/w Battery Backup | Y |
Backup Battery Type | Lithium |
Wiring Method | Wired |
Voltage Type | AC |
Detection Type | Rate of Rise Heat |
Battery Life Span | 10 |
C/w Batteries | Y |
C/w Call Points | N |
Addressable | N |
Minimum Operating Temperature | 4 Degrees C |
Maximum Operating Temperature | 38 Degrees C |
Battery Type | Lithium |
Rated Supply Voltage | 230 V |
Power Supply Mains | 230 V |
Maximum Number Of Detectors | 50 |
Delivery Options:
- PRIORITY DELIVERY – Next Working Day (All items in stock and ordered before 3 pm) - £7.08 inc-VAT. (£5.90 ex-VAT)
- Orders Over £100 (before VAT): We offer free standard shipping on all orders shipped to UK mainland addresses
- Orders under £100 (before VAT): Our standard delivery fee to UK mainland addresses is £5.90 ex-VAT (£7.08 inc-VAT)
*Delivery charges to JE, GY, TR, BT, IM, IV, HS, KW, ZE and certain PA post codes are £12 ex-VAT for all orders (Prices subject to change).
Items requiring specialist shipping:
- Orders containing Solar Panels, Batteries and/or Inverters: Up to 50 qty will be dispatched on a pallet and incur a £120 ex-VAT delivery charge**.
**Delivery charges to JE, GY, TR, BT, IM, IV, HS, KW, ZE and certain PA post codes are £180 ex-VAT (Prices subject to change).
Contact us if you have any further questions.