FEATURES: A). DIY, Wireless installation, Easy-to-operated. Auto-alarm. B). It goes off alarm to scar away the intruders when transmitter is triggered. APPLICATIONS: a). Integrated with outdoor field, home, farm, business store, public plaza security b). Widely used for residential area, office, workshop, school, factory, museum, Hospital. c). Widely used for bank, electric power Dept. Oil Dept,Railway Dept. financial Dept. Police Dept and so on Specification 1. Working voltage: input: 110 VAC or 240VAC , Output :9~12VDC 2. Siren index: 110~120 dB (Test distance: 300mm, Surrounding noise: <65db, standard voltage) 3, Sound frequency: 3.8KH2+10%; Resistance:230-280mA 4, Transmit speed: 3H2+10% 5. Transmitting distance:noninterference >200m ; indoor about 30~50 m 6. Material: ABS Plastic cabinet; Iron stand thickness: 1.55 mm ,black color. 7.Size:100mm*95 8. Power: 10 W.