Convenient to operate and use, and it is of high practical value.
Built-in 6 LEDs, and the siren will emit a loud sound and a fast flash to remind people to escape the fire
With three different tones, you can choose any you like
The sound and light alarm device is an alarm terminal device, and it is suitable for sound and light alarms when a fire occurs
The two-wire system is used for wiring. The main line is terminated with two main lines, and the power supply is connected to the 12 / 24VDC power line
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