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SOS Call Small Mini Location Personal GPS Tracker for Kids and Elders: of cell phone is 33 db, but TK16 is 27db, every 3 db,the radiation will be double So when the mobile phone with very poor signal, the TK16 may be no signal. Q:How about the TK16’s GPS ...

Emergency Sos Button GSM Online GPS Watch Tracker for Kids: Would they have enough time to make a call if an emergency happened? But with the help of this super mini tracker, which special populations like the elderly & children encounter an emergency ...

Mini Accurate GPS Car Vehicle Tracking System for Fleet Management Fuel Detection: +60°C Operating humidity: 5% to 95% non-condensing Battery 3.7vDC/450mAh Monitoring range 5M Working voltage/current 9-48 vDC/90mA LED indicator Three LED indicator: GPS-blue, GSM-green, ...

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SOS Call Small Mini Location Personal GPS Tracker for Kids and Elders