Smoke Detector FireAngel ST-622

The FireAngel ST-622 is a sealed 10-year Thermoptek smoke alarm combining optical sensing with Thermoptek technology used by UK Fire and Rescue Services. Designed for reliable detection of slow-smouldering and flaming fires, this battery-powered unit has compact dimensions (130 × 130 × 34 mm) and is certified to BS EN 14604:2005 +AC:2008.

Advantages

The sealed 10-year battery design removes the need for regular battery replacement and helps ensure continuous protection. Thermoptek sensing improves response to both slow-smouldering and faster flaming fires compared with basic detectors. The unit includes a temporary silence (sleep-easy) function that mutes nuisance alarms for up to 8 hours while maintaining overall protection.

Suitable for

• Homes, flats and residential rooms
• Bedrooms and hallways where nuisance alarms may occur
• Replacement of older or non-compliant smoke alarms

Key specifications

• Model: FireAngel ST-622
• Technology: Thermoptek optical sensing
• Power: sealed 10-year 3V battery
• Dimensions: 130 × 130 × 34 mm
• Standards: Certified to BS EN 14604:2005 +AC:2008
• Features: 8-hour temporary silence (sleep-easy)
• Manufacturer code (MPN): ST-622, EAN: 816317003913

How to use

Install the FireAngel ST-622 on a ceiling or high on a wall using the supplied mounting base and screws, following the manufacturer’s instructions. Test the alarm after installation and at regular intervals using the test button. If the alarm sounds due to smoke, follow evacuation procedures; if the alarm is a nuisance, press the sleep-easy silence button to mute the unit for up to 8 hours, after which protection resumes automatically.

Usage recommendations

Position the detector centrally in rooms or corridors away from cooking appliances and bathrooms to reduce false alarms. Keep the device free of dust and paint, and replace the detector at the end of its 10-year operational life as indicated by the manufacturer.