... Type: Magnetic Switch Alarm Working Mode: Active Signal Transmission: Wireless Alarm Type: Tag Usage: ... 12. SOS, fire, gas, door, hall, window, balcony, and perimeter places alarm; 13. Real-time, delay ... detector, 1 wireless door sensor, 1 siren, 2 remote controllers, 1 power supply, ... suitable for elderly and child in emergency. Spanish voice gsm lcd intelligent alarm system with LCD display