The smoke alarm part(mainboard part ) and RF board part are powered by two independent 3V battery separately. ![]() This situation changes with this wireless photoelectric smoke alarm. ![]() A smoke alarm that sounds alarm in the loft might not always be audible in the garage. In case of smoke emission in one of the protected rooms, all installed smoke alarms are activated. With the installation of more than one smoke detectors, the communication is wireless. This product is a smart photoelectric smoke alarm, which is combined with a RF transceiver.
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