... alarm system kit. - Supports up to 60 wireless sensors (15 wireless defense zones and 4 wireless sensors per zone). - Transmit at 430- ... 433MHz frequency band, wireless transmitting distance up to 300 feet (remote controller, smoke sensor, & siren)and up to ... and 1 management center protocol(CID). - Armed/disarmed by remote controller, phone call, or host’s keypad. - Easy “one-key” ...