Have a nefarious reason to know the whereabouts of your spouse, teenager, or wayward employee?  Introducing the WorldTracker SMS by Security Concepts.  The WorldTracker SMS is a small GPS device powered by the SiRFstarIII chipset (which includes WAAS for signal correction/accuracy) and includes a built-in tri-band GSM module for sending tracking messages via SMS to as many as seven cell phones or PDA’s.  With Security Concepts’ monthly service offerings, you can also track your target using Google Earth – a first in the industry for real-time trackers.  The device can run for up to 24 hours on its own internal lithium-ion battery, or with the inclusion of an external battery pack anywhere from 4 to 15 days.  For those extended tracking sessions the GPS can also be hardwired to any 12-volt power source.  Street level pricing appears to be $600-700 depending on where you shop.

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