so it is better for nearby operation rather than long-range triggering
Dry contact trigger input for sensor
9 built-in alarm tones and multiple flashing light modes for vehicles
mines and outdoor security warning areas
YASONG SLA-290-II 7-Color Strobe Siren Light, 120dB, 9 Tones, 3 Flash Modes, AC100-240V, IP69K Motion Sensor & Detector Alarm Siren so it is better forThe YASONG SLA 290 II 7 color strobe siren light combines a 0120dB adjustable horn, 9 built in alarm tones and 3 seven color flashing modes for project vehicles, automation equipment, factory workshops, construction sites, lifting machinery and security posts. This model uses an AC100240V power input and comes with an adapter, so no wiring is required for normal use. Tone, volume and flashing mode can be adjusted through the SW1 and SW2 buttons inside