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G.W. 3.5kg (5) GSM frequency quad band (5) Manufacturer Shenzhen SINDA Technology Co.Ltd. (5) Siren volume ≥110 db (5) | Products > Electronics > Security Products > Alarmconnect mode:=Y1 - 5 new products new products GSM alarm system Shenzhen Sinda hot selling gsm power transfomer alarm Power off alarm system-Patrol Hawk Burglar alarm for power transformer, Cables Intelligent GSM power alarm system-power off alarm |