This model works with a wired button control box: after the siren and button box are connected
and this model does not include sound
This model uses a power-on operation design: after wiring and power connection
The YASONG hand crank siren is a manual emergency warning horn designed for locations where power supply may not be available
YASONG SLA-190 120dB LED Beacon Siren Light, 9 Tones, 4 Flash Modes, AC100-240V, Remote Control Color:Amber This model works with aThe YASONG SLA 190 LED beacon siren light combines a 0120dB adjustable horn, 9 built in alarm tones and 4 flashing light modes for workshops, factories, construction sites, project vehicles, warning posts and industrial emergency areas. This model uses an AC100V240V wired power input. The remote controller can adjust the tone, volume and flashing mode within a short operating range. 0120dB adjustable sound controlled by remote controller 9 built in