Conrad gka100 car alarm system with gps postioning and sms messaging conrad gka100 p the conrad gka100 is more than just an alarm for your car not only does the audible alarm act as a powerful deterrent but also the gka100 immediatley notifies you via sms p p in the event of the alarm being triggered the gka100 transmits a message alert and global positioning data to you with the gps receiver included you can send the current location of your vehicle via sms as gps coordinates or as