Siren
Battery / external power status report, USB DC5V power supply, also
provides backup battery power supply, when USB is plugged in,
battery power is disconnected.
Remote control function, APP controls sound and duration.
Cloud linkage setting, when triggered, the linkage will open the
specified sound of 1-18 kinds and duration.
Timing designation turns on 1-10 sound and duration setting function.
Real-time display of temperature and humidity.
The temperature and humidity alarm can be linked to the sound
alarm, without the need for service linkage, the local can also be
linked.
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