YASONG SLA-B02X 120dB RS-485 Modbus Alarm Siren, 25W, 12 Tones, IP65, USB Upload, LED Strobe Featured collection then activates audible and visual

then activates audible and visual warning after receiving the switch signal

and the siren does not come with a plug switch

This model uses a built-in 2600mAh lithium battery and can be charged by AC100–240V power

LED strobe warning light for clear visual safety indication

YASONG SLA-B02X 120dB RS-485 Modbus Alarm Siren, 25W, 12 Tones, IP65, USB Upload, LED Strobe Featured collection then activates audible and visualThe YASONG SLA B02X RS 485 Modbus alarm siren combines a 0120dB adjustable horn, RS 485 Modbus RTU protocol control and LED strobe warning light for factories, warehouses, corporate buildings, residential communities, retail stores and industrial warning systems. This model works by RS 485 command activation: after power is connected, the alarm remains in standby mode and can be triggered by control software sending commands through the RS 485