A GPS tracker with SOS / 2 way calling is a device with messaging function as well as fast call feature.

By using GPS tracker with SOS / two way calling, you will be in a position to send SMS message of your location information by using GPRS.

GPS trackers with SOS permits two way communications. That is when you send SMS message to SIM card in the GPS tracker, then the location on explicit longitude and latitude is sent to you and you make use of Google maps to test their location.

So why would we need 2-way calling in what's been created as a tracing device?

Two way calling is not a function a envious man / wife, private investigator or federal agent would require ( after all of the target should ideally not even know the tracking system exists ) instead it is meant for folks with youngsters or charges that they need to be sure are safe and can not keep an eye on twenty-four hours per day.

The device gives you all information, the velocity and direction, routes travelled and will always allow you to ensure the person you care about is where you think they are .

However, what sets GPS trackers with SOS calling apart is their 2 way calling function which permits you to ensure that the person with the device is safe. No matter what the time is and no matter where they are . GPS trackers with SOS / two way calling functions have a 2.5mm earphone input and a mic that allows for communication.

One important thing to think about with GSM capable GPS tracking devices (as with any GSM gadget) is whether it will work in your cell phone region.

To guarantee this ensure you buy only quad band devices or, at the very least, devices which work on the frequencies that work in your country. GPS Tracker with two way calling don't cost the earth and tend to have reasonable parts. However, you may potentially realise they cost more than a standard GPS tracker.

For best complete performance it is recommended that you look for devices that have a SiRF-Star III Chipset or better.

Have a look around at available options and open yourself up to the confidence that GPS tracking devices with GSM capacities can supply you with today.