Power adaptor: DC 12V/1A(Input)                                

Siren sound:110dB                                                       
Back-up battery: NI-HI AAA*6 DC 7.2V                                

 Working current: Max 450mA                                         

Tempereture: -20℃ ~ +55℃, humidity:40%-80%                                               

Wireless frequece:315MHZ/433MHZ