This model uses an AC100–240V wired power input
6 system alarm tones and user-replaceable warning voice prompts
Confirm the backup battery capacity and operating time before purchase if these details are critical to your application
and long-distance remote control for outdoor safety and security alerts
YASONG SLA-800K 120dB Dry Contact Trigger Alarm Siren, 12 Tones, IP65, USB Upload, LED Strobe Voltage:DC24V This model uses an AC100–240VThe YASONG SLA 800K dry contact trigger alarm siren combines a 120dB loud horn, discrete signal activation and LED strobe warning light for sensors, PLC systems, level gauges, cameras, factories, mines, ports and industrial safety warning areas. This model works by signal triggered operation: after power is connected, the siren stays in standby mode and starts sound and light warning when it receives a sensor or switch signal. 120dB loud alarm sound