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When power is cut off
Dual-beam infrared detection to help reduce false alarms
Multi-tone alarm sound with tone adjustment support
0–120dB adjustable sound with multi-tone alarm output
YASONG SLA-900MX 130dB RS-485 Modbus Alarm Siren, 150W, 12 Tones, IP65, USB Upload, LED Strobe Voltage:AC110V When power is cut offThe YASONG SLA 900MX RS 485 loud alarm siren combines a 150W high power horn with a LED strobe warning light for factories, industrial sites, large outdoor areas and emergency warning systems. This model is triggered by RS 485 communication protocol and supports Modbus RTU with a default baud rate of 9600. Users can send commands through control software to activate the alarm and adjust volume or tone. 150W high power siren for wide area warning
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