Alarm Siren with Button Control Box Adjust 120dB Loud Horn 12 Tones 25W One Button Linkage Outdoor Security Siren with LED Strobe Light for School Factory home Farm SLA-01HZ

【Operating Principle】Button control box to control the siren on or off.  After the siren wires and thebutton box wires are connected, when power on, the siren is in standby.  Press any button on the button box, all the sirens will start to sound and light alarm;  press any button on the button box again, all the alarms will stop working.  （If you do not know how to wire, you can contact us and we will solve for you） 【Adjustable volume and tone】 The volume tone can be adjusted, 0-120dB adjustable alarm, you can select the volume according to your own needs; The alarm has 9 built-in sounds and you can change the sound of the alarm via the button on the alarm. There is also USB port available, you can upload your own sound to the siren.Then the audio motherboard inside the alarm will play your music as warning tones     【Alarm siren with strobe light】Once activated there will be red flashing warning light at the same time with the tone, obvious and easy to attract attention; bright LED be