2) Equipment easy to install, wiring;
3) Equipment has also issued two kinds of sound and flash an alarm signal, even people with disabilities can be a timely response to evacuate;
4) The audible alarm and flashing alarm may be set freely. In other words, the hooter/horn may give an audible alarm and a flashing alarm at the same time or separately and it can be adapted to different working environments.
1) Automatic fire alarm system can not identify the specific location of the sound and light alarm device alarm;
2) Equipment will be slightly less than the fire alarm sound alarm bells sound;
3) Sounds kind is not adjustable, only one alarm sound choices.