100m / 320ft infrared detection distance for outdoor perimeter protection
This model stays in standby mode after power-on and can be turned on or off by remote control
The YASONG SLA-1509 portable rechargeable outdoor alarm siren combines a 0–120dB adjustable horn with a LED strobe warning light for cranes
The YASONG SLA-315 dry contact signal alarm siren is designed for factories
with upgraded version over 10H
YASONG SLA-315 120dB Dry Contact Industrial Alarm Siren, External Signal Trigger, 15W, 3 Tones, RGB Strobe Voltage:DC12V 100m / 320ft infrared detectionThe YASONG SLA 315 dry contact signal alarm siren is designed for factories, warehouses, automation systems, PLC systems, cameras, liquid level meters and external sensor alarm outputs. This model uses an external dry contact signal trigger and can work with different switching value control systems. When the external signal is activated, the siren provides 0120dB adjustable sound and red, yellow or green LED strobe warning. Dry contact signal trigger