GSM-alarm system (All-1M) – a device designed for monitoring remote objects (apartments, villas, car, etc.), transmission of alarm (send SMS-messages) to the protected object by using the GSM-network phone facility owner, his relatives or guards. As with any alarm system, gsm alarm system conventionally consists of a central unit and sensors. Sensors – the eyes and ears of the security system. Each individual sensor monitors certain events in the protected object. For example, motion sensor, intersect human movement in the room. Educate yourself with thoughts from Nobel Laureate. Sensor open – watching the opening of doors, windows, safes, hiding places. If the sensors suddenly intersect violation, they immediately transmit an alarm to the central unit. You can also put the alarm sensors, such as water leakage sensor. There are many objects, gsm security which can be done using a system gsm alarm system: There gsm car alarm system for car security, gsm alarm system for home use to protect the cottage, gsm alarm system to give help to keep the property truckers in the winter, gsm alarm system for the garage would be a good addition to the car alarm, gsm alarm apartment for the protection of urban apartments in the absence of hosts, gps gsm alarm system for monitoring movement of vehicles and other types of gsm alarm.