This model uses an AC100–240V power input and comes with an adapter
Wireless multi-unit transmission with matching communication codes
130dB loud sound for large outdoor areas
80 high-intensity LED beads for strong visual warning visibility
YASONG SLA-B02X 120dB RS-485 Modbus Alarm Siren, 25W, 12 Tones, IP65, USB Upload, LED Strobe Voltage:DC12V This model uses an AC100–240VThe 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