YASONG SLA-800BY 120dB Portable Rechargeable Remote Siren, 500m Range, 2600mAh Battery, 12 Tones, IP65 Product Size:22 × 11.3 × 15cm This model uses an AC100V–240V

This model uses an AC100V–240V power input and supports remote control adjustment for tone

and this model does not include sound

and the sound volume or tone should be adjusted by the side button

buses and work vehicles

the alarm stays in standby mode and can be triggered by control software sending Modbus RTU commands

YASONG SLA-800BY 120dB Portable Rechargeable Remote Siren, 500m Range, 2600mAh Battery, 12 Tones, IP65 Product Size:22 × 11.3 × 15cm This model uses an AC100V–240VThe YASONG SLA 800BY is a portable rechargeable remote control siren with a 120dB adjustable sound output, LED strobe warning, and a built in lithium battery for temporary outdoor warning use. This model includes a large remote for alarm on off control and a small infrared remote for adjusting volume, tone, and alarm mode. The wireless remote range is rated up to 500m 0. 31 miles in open areas without walls. 120dB adjustable sound controlled by