This model includes a large remote for alarm on/off control and a small infrared remote for adjusting volume
It supports multiple voltage options and requires wiring before use
and long-distance remote control for outdoor safety and security alerts
Voltage and lampshade color should be selected before ordering
This model works by remote control
YASONG SLA-800K 120dB Dry Contact Trigger Alarm Siren, 12 Tones, IP65, USB Upload, LED Strobe Voltage:DC24V This model includes a largeThe YASONG SLA 800K dry contact trigger alarm siren combines a 120dB loud horn, discrete signal activation and LED strobe warning light for sensors, PLC systems, level gauges, cameras, factories, mines, ports and industrial safety warning areas. This model works by signal triggered operation: after power is connected, the siren stays in standby mode and starts sound and light warning when it receives a sensor or switch signal. 120dB loud alarm sound