| CPC G01S 19/26 (2013.01) [G01S 19/34 (2013.01); G06F 1/163 (2013.01); H04W 4/029 (2018.02); H04W 4/12 (2013.01); H04W 52/0225 (2013.01)] | 20 Claims |

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1. A tracking device comprising:
a secure lockable continuous band for encircling an extremity of a wearer, wherein the band has a conductive strip throughout the length of the band;
an RF transceiver;
a cellular transceiver;
a GPS receiver;
a microcontroller which controls the RF and cellular transceivers and GPS receiver; and
a power source for providing power to the RF and cellular transceivers, GPS receiver and microcontroller;
wherein the band extends through the entire interior of the housing;
wherein the RF and cellular transceivers and the GPS receiver are configured to be in hibernation mode;
wherein the microcontroller is configured to awaken one or more of the RF and cellular transceivers and the GPS receiver from hibernation upon receipt of a first signal over an external RF or cellular communication channel;
wherein the microcontroller is configured to transmit a second signal indicating location coordinates using the RF and/or cellular transceivers over the external RF and/or cellular communication channel; and
wherein the microcontroller comprises one or more conductive pins which fit through one or more matching holes in the conductive strip of the band in the interior of the housing to provide an electrical connection between the microcontroller and the conductive strip.
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