You have purchased the FSM-02700 smoke detector and you are having problems to activate the smoke alarm. Then please take note of the follwing informations.
How can I first test whether the smoke detector is working?
To test out if the smoke detector works, press the small button on the back.
If you hear beep now, means the smoke detector is working.
Then press the small button on the back (hold it) and the test button on the front at the same time, you will now hear the test alarm go off.
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How can I now set the smoke alarm to operate permanently?
To activate the smoke detector, take the ceiling plate place it on the back and turn it firmly clockwise to fix it to the smoke detector. Make sure that the plate is fully engaged. The smoke detector beeps once. Only after mounting the ceiling plate will the smoke detector be activated. Otherwise, the small button on the back will not be permanently pressed.
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FSM-02700