Introduction about alarm system: (Selling points, application, operating principle) 1. The functions of our GSM alarm system are powerful. It is one of the best sale products. 2. Fashionable design 3. If the distance between the defence zone like your park, garden, swimming pool and so on and the alarm panel is above 100M and upto 3000M, you could purchase SSG SA-1168-0-GSM5-FM ( GSM Alarm with AM FM) which can meet your demand, 4. This Alarm System can not work with Central Monitoring Station
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