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FireAngel Mains Powered Thermoptek Smoke Alarm

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SKU: SM-SN-1 Category: Brand:


The FireAngel SM-SN-1 is a 230V mains powered smoke detector, with tamper-proof sealed for life battery back-up and hard-wired interlinking capabilities. Under typical usage conditions, it uses approximately 10% less power than the average AC fire alarm, making it the only smoke detector currently on the market with a proven carbon footprint. The back-up battery boasts a lifespan of 10 years.

Its integrated ultra-slim mounting base ensures easy installation, and its tamper-resistant hinge prevents the detector unit being removed without a suitable tool.

‘Sleep Easy’ functionality enables the low battery chirp to be silenced for an 8 hour period (this function can be used up to a maximum of 10 times). The alarm can be temporarily silenced for up to 10 minutes in the case of a known false activation, however, if the level of smoke detected is very high, this feature will be overridden for your safety and the alarm will continue to sound. When the combined test/silence/locate button is pressed on any device on the network, all connected devices except the device that was triggered will be silenced, offering easy identification of the unit in alarm.

This product provides Class A1 smoke detection and is appropriate for use in Grade D systems. It is approved to BS EN 14604:2005. The manufacturer warranty period is 5 years.

Key Features

  • Thermoptek Multi-Sensor technology for fast detection of both fast flaming and slow smouldering fires.
  • 10 year sealed for life lithium battery back-up.
  • Low energy usage – typically less than 10% of the average 230V AC smoke alarm.
  • Proven carbon footprint of =13.9kg C02e per alarm.
  • Ultra slim, integrated base plate.
  • Centralised button – test / Smart Silence / locate.
  • Secondary back-up buzzer.
  • Mixed system compatibility
  • Wi-Safe 2 and hardwired alarms on a single network.
  • Mains and battery powered alarms on a single network.


  • Supply voltage: 230V AC, 50Hz
  • Battery back-up: 10 year sealed for life lithium battery back-up
  • Technology: Thermoptek
  • Alarm sound level : 85dB (A) at 3m (minimum)
  • Installation positions : Ceiling/ Wall
  • Operating temperature : +4ºC to +38ºC
  • Operating humidity : Up to 90% RH non-condensing
  • Storage temperature : -20°C to 60°C
  • Storage humidity : Up to 93% RH non condensing
  • Plastic material : ABS, UL94 VO fire retardant
  • Warranty : 5 years
  • Range (WSM-SN-1 Wireless) – 35m (over 200m in clear air)
  • Weight: 257g
  • Certified to: EN 14604: 2005+AC:2008
  • Maximum number of connected units: 30 hardwired units


Additional information

Weight 0.35 kg