Fire Angel ST-622T Smoke Alarm Thermoptek Lithium Battery

(2 customer reviews)

£17.45 Ex VAT

Out of stock


Fire Angel ST-622T Smoke Alarm Thermoptek Lithium Battery

The ground-breaking Thermoptek™ technology in the ST-622 provides responsiveness to all fire types in one alarm and removes the need for ionisation alarms – putting the environment first. This is the smoke alarm of choice for the UK’s Fire & Rescue Services.

Thermoptek™ technology combines the very latest in optical sensing with thermal enhancement, providing fast reaction to both slow smouldering and fast flaming fires in a single alarm.

includes 10-year laser-welded lithium power pack which prevents moisture ingress to ensure the alarm will remain powered for life.

An all new and improved universal backing plate guarantees quick and easy fitting. A larger, concave central button has been designed for easier silencing and weekly testing of the alarm.

‘Sleep-easy’ function allows the warning chirp to be temporarily silenced for 8 hours when the alarm starts to reach its end of life, by simply pressing the test button. Ideal for periods when it is inconvenient to change the alarm e.g. at night but when smoke detection is still required. ‘Sleep-easy’ function can be activated 10 times, providing sufficient time to get the alarm replaced (recommended within 7 days).

BSI Kitemark certified to BS EN 14604. This alarm cannot be used as a substitute for a hard wired interlinked system as required in some properties.

Technical Specifications:-

  • Thermally enhanced optical smoke sensor.
  • Non-removable integrated lithium power pack – 10 year life in normal operating conditions.
  • Loud 85dB Alarm at 3 metres. 
  • Can be fitted to the ceiling or wall.
  • Certified to BS EN 14604:2005.
  • Backplate provides locking facility for security if required.
  • Available from

Dimensions: 130mm diameter x 34mm deep

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