GSM紧急呼叫系统GSM SOS呼叫
关键词：
GSM紧急电话，无线紧急电话，GSM紧急报警按钮，紧急电话，SOS的高级手机。
老年人紧急呼叫，老人SOS通话按钮，无线老年人紧急呼叫
在GSM紧急呼叫系统GSM SOS呼叫K1是专门为高级，残疾人或公共场所迅速寻求帮助！
简洁，时尚，利落的设计;
大SOS按钮，一键调出
语音通信的高品质;
可调式语音音量;
发送短信警报3的用户或监控中心;
允许所有号码或10数量有限，可以调用;
外部电源通过短信提醒OFF变为ON/（备用电池）
GSM频率：850/900/1800 /1900MHz的;
在线联系供应商
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