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Posted By burglaralarmsystem - China
Summary: ph pstn alarm adopt public switched telephone network transmission mode voice

Posted By burglaralarmsystem - China
Summary: 8 wireless guarding zones 4 hardwired remote monitor noise space query alarmed

Posted By burglaralarmsystem - China
Summary: 8 wireless guarding zones 4 hardwired remote monitor noise space query alarmed

Posted By burglaralarmsystem - China
Summary: ph pstn alarm adopt public switched telephone network transmission mode voice

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Summary: 8 wireless guarding zones 4 hardwired remote monitor noise space query alarmed

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Summary: autodial telephone alarm home security ph pstn adopt public switched network

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Summary: functions 1 auto dial 6 phone numbers 10 seconds recorded voice 2 alarm priority