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FireAngel Thermoptek ST-625 - User Manual

FireAngel Thermoptek ST-625
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User Manual
Smoke Alarm
Model
ST-625

Questions and Answers

  • M
    Miss Mary Riggs DVMJul 27, 2025
    What to do if my FireAngel Smoke Alarm keeps going off?
    • T
      Thomas WrightJul 27, 2025
      If your FireAngel Smoke Alarm is giving frequent unwanted alarms, first check its location. Then clean the smoke alarm. If the problem persists, contact Technical Support for advice.
  • J
    juliepooleAug 6, 2025
    How to stop FireAngel Smoke Alarm going off when there's no smoke?
    • L
      Laura TaylorAug 6, 2025
      If your FireAngel Smoke Alarm activates when no smoke is visible, check the location of your smoke alarm. Also, clean the smoke alarm.
  • R
    Robert MartinezAug 15, 2025
    What to do if FireAngel Thermoptek ST-625 Smoke Alarm won't stop chirping after pressing the test button?
    • B
      Bryan PrattAug 15, 2025
      If the low battery warning silence chirp on your FireAngel Smoke Alarm does not silence when the test button is pressed: * You can only silence the low battery warning chirp a maximum of 10 times. Replace the batteries. If the batteries have been recently fitted and the alarm is still chirping, contact Technical Support. * If the red LED flashes at a separate time from the chirp, a fault is indicated. * If within warranty contact Technical Support. Otherwise replace immediately.

Summary

Sensor Technology

How to Install Your Smoke Alarm

Install Batteries

Instructions for inserting batteries correctly, noting the LED indicator and test button activation.

Test Your FireAngel Smoke Alarm

Procedure to test the alarm after installation by pressing the test button.

Operation

Battery Replacement

Alarm Test

Alarm Smart Silence

Sleep Easy

Maintenance

Troubleshooting

Alarm does not sound during testing

Solutions for when the smoke alarm fails to sound during the test procedure.

Alarm activates when no smoke is visible

Advice for false alarms or activations without visible smoke presence.

Low battery warning silence chirp does not silence

Steps for when the low battery warning chirp cannot be silenced via the test button.

FireAngel Thermoptek ST-625 Specifications

General IconGeneral
TypeSmoke Alarm
Battery LifeUp to 10 years
Alarm Volume85 dB at 3 meters
Test ButtonYes
LED IndicatorYes
Operating Temperature0°C to +40°C
Warranty5 years
Sensor TypeOptical
Standards ComplianceEN 14604
Power Source10-year sealed lithium battery

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