A GPS medical alert system combines a wearable emergency button with location tracking, so if you fall or need help, first responders can find you even if you can't speak your address. It's a small pendant or wristband that works both at home and outdoors, using cellular or satellite signals to pinpoint your location. Many models include fall detection and two-way voice, so you can talk to a dispatcher right through the device. This tech is especially useful for seniors who live alone, enjoy wa… GPS medical alert 12