YASONG SLA-05BK 130dB Dry Contact Trigger Alarm Siren, 45W, 12 Tones, IP65, USB Upload, LED Strobe Product Size:40.3 × 18.5 × 20.4cm This model uses an external

This model uses an external dry contact signal trigger and can work with different switching-value control systems

USB audio upload for custom alarm sounds or voice prompts

The remote control range is rated up to 164ft / 50m

This product is a visual warning light and does not include a built-in battery

YASONG SLA-05BK 130dB Dry Contact Trigger Alarm Siren, 45W, 12 Tones, IP65, USB Upload, LED Strobe Product Size:40.3 × 18.5 × 20.4cm This model uses an externalThe YASONG SLA 05BK dry contact trigger alarm siren combines a 0130dB adjustable horn, 45W alarm power and LED strobe warning light for sensors, motion detectors, entry access control systems, relays, control panels and outdoor industrial security areas. This model works by dry contact signal activation: when an external device sends a voltage free switch signal, the siren triggers both sound and light warning. It supports multiple voltage options and