... and telephone. This alarm system is widely used for security protecting, data surveying and remote monitoring in shops, villas ... , coal, government, public security and other unattended positions.1. 4 wired and 12 wireless defense zones;2. Call 6 ... Volume: 110dBStandard pack components1 main panel, 1 wireless infrared (motion) detector, 1 wireless door magnetic detector,1 siren, 2 remote controllers ...