... Emergency alarm system with LED light 1.SMS set command 2.10seconds voice message 3.24 defense zones 4.CE Emergency alarm system with ... can be set different zone types. Such as emergency zone, internal zone, external zone, delay ... and quick to be installed and operated13. With inner back-up battery, when the power ... relay, can control home appliance,such as light, cooker, air-conditioner and so on.15 ...