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The GSM Alarm System S3524A is a new security protection and FWT (fixed wireless termial) solution special for home, house and office and other applications. It based on Wireless GSM Communication network, intergrated Voice communication and Computer technology. When any sensor activated, it will Call&Send SMS to owners telephone immediately. Also, it can be used as a wireless telephone to call and answer calling. The S3524A equips with LCD display entire operation menu, all operations a