asset 100 being moved from one location to another or the motion could be the removal of the tag 60 from the asset 100 at block 206 an activation signal is transmitted from the processor 101 to the tag removal sensor 106 which is an optical sensor 106 the activation signal activates the optical sensor 106 from a low power or resting mode to a high power or activation mode in this manner the limited power supply 104 of the tag 60 is not quickly exhausted by having the optical sensor 106 in a constant high power activation mode at decision 208 a determination is made concerning the attachment status of the tag 60 this determination is performed by the reflected light 109 b of the emitter 107 being received by the photodiode 108 if the reflected light 109 b is received by the photodiode 108 then at block 210 a signal is sent that the tag 60 is attached to the asset 100 and the tag 60 continues to broadcast location readings to the sensors 55 if the reflected light 109 b is not received by the photodiode 108 then at block 212 a signal is sent from the optical sensor 106 to the processor 101 that the tag 60 has been removed from.