Panic Button Alarm for House Remote Control Strobe Siren Alarm System Sound &…
The siren with 120dB sound and flash, cannot be used alone, it has to work with the call buttons. In event of instruction, the call button will send a RF signal to the siren, and then siren will sound a piecing voice(Although not piercing loud like a normal fire alarm, you need to protect your hearing when you use it).
