... Call,Email combined security alarm system 16 wireless and 3 wired security alarm zone Waterproof ... -Adopt three bands, GSM 900/1800/1900MHz,security wireless alarm remotely via call or SMS. -Support GSM ... and so on. -All the alarm system with wireless signal transmission, no need to connect to wire and ... main panel, 2 remote controllers, 1 wireless door sensor, 1 wireless PIR detector,1 siren, 1 camera, ...