1.GMS gsm alarm device 2.SMS remote control 3.MMS/E-mail alert 4.Widely used ... forgot to arm, hierarchy management for alarm zone.6.Arming/Disarming by remote controller.7.SMS remote control the light, stereo etc ... appearance, small size, wireless remote control, GSM/GPRS MMS/Email/SMS alarm, emergency call, 1channel relay output, lithium battery interface. Size: 212mm ...