Twig brand is the worlds leading personal alarm devices using 3g networks with SIM card. ALso Twig includes the complete safety alarm software platform in the cloud or on premise for location and device and alarm management, also duress alarms, lone-worker alarms, team alarms, Evacuation alarms, alerting and notification systems and messaging systems. The web site shows the wide range of highest quality wearable devices, and the locating services available including but not limited to security company services.