This wired siren is a necessary sound alarm accessory when you DIY your home alarm system, simply connected it with your smart alarm device like keypad/console/alarm host, power it with DC 12V, with super lound sound 120dB, they not only alert the neighbors of the intrusion, but also scare away the intruders/burglar right out of your house!
It works with your security system, responding to signals from an alerted keypad/console/alarm host
– Rated voltage: 12V DC
– Sound index: 120dB
– Sound frequency: 3.8KH2+10%
– Transmit speed: 3H2 increase or discrease 10%