YASONG SLA-SD500-Y 130dB Remote Emergency Siren, 2000m Range, 30W Horn, 10W Floodlight, IP65, 3 Tones Product Size:20.8 × 15.26 × 47.4 cm / 8.2 × 6 × 18.7 in 0–130dB adjustable volume controlled by

0–130dB adjustable volume controlled by button on the siren

24-mile wireless remote control for long-range activation

so the mainframe or public address control station is not included

so install it in an open place to reduce unwanted triggering

buses and other work vehicles that need clear rooftop safety warning

YASONG SLA-SD500-Y 130dB Remote Emergency Siren, 2000m Range, 30W Horn, 10W Floodlight, IP65, 3 Tones Product Size:20.8 × 15.26 × 47.4 cm / 8.2 × 6 × 18.7 in 0–130dB adjustable volume controlled byThe YASONG SLA SD500 Y is a wireless remote emergency alarm siren with a 130dB loud horn, LED strobe warning, and floodlight for outdoor safety alerts during power outages or emergency situations. This model supports wireless remote control up to 2000m 1. 24 miles in open areas without walls. When power fails, the built in lithium battery can keep the siren and warning light working for about 2 hours. 0130dB adjustable volume controlled by button